iStrelok
$4.99
4.57for iPhone, iPad
Age Rating
iStrelok Screenshots
About iStrelok
iStrelok is a ballistic trajectory calculator.
- 984 reticles supported! Full list see here: http://www.strelokpro.online/istrelok/reticles.html
- You can see holdovers on your reticle and scale holdovers to any magnification (if reticle is located in second focal plane).
- Trajectory calibration ("Truing") feature.
- abitity to change target type and select from the long list
- ability to input current altitude from internal GPS sensor
- iPhone internal barometer support
Small, handy and accurate. Field-proven accuracy since 2001.
Supports imperial units (yards, feet, inches, etc).
- 984 reticles supported! Full list see here: http://www.strelokpro.online/istrelok/reticles.html
- You can see holdovers on your reticle and scale holdovers to any magnification (if reticle is located in second focal plane).
- Trajectory calibration ("Truing") feature.
- abitity to change target type and select from the long list
- ability to input current altitude from internal GPS sensor
- iPhone internal barometer support
Small, handy and accurate. Field-proven accuracy since 2001.
Supports imperial units (yards, feet, inches, etc).
Show More
What's New in the Latest Version 4.57
Last updated on Mar 4, 2023
Old Versions
Various bug fixes
Show More
Version History
4.57
Mar 4, 2023
Various bug fixes
4.56
Mar 2, 2023
Bug fix Dropbox import
4.54
Jan 27, 2023
Bug fix saving cartridge data in iPad version
4.47
Jul 5, 2022
Reticles added:
- MPR-4, Veyron 6-24x44 FFP, Vector Optics
- X50i, Thermion XM50, Pulsar
- M58i, Thermion XM50, Pulsar
- VPR MIL, EP5 5-25X56 FFP, Arken
- MPR-4, Veyron 6-24x44 FFP, Vector Optics
- X50i, Thermion XM50, Pulsar
- M58i, Thermion XM50, Pulsar
- VPR MIL, EP5 5-25X56 FFP, Arken
4.46
Apr 17, 2022
Reticles added:
- XLR-2 MRAD, Razor HD LHT 4.5-22x50 FFP, Vortex
- XLR-2 MOA, Razor HD LHT 4.5-22x50 FFP, Vortex
- ZBR-1, Conquest V6 5-30x50, Zeiss
- XLR-2 MRAD, Razor HD LHT 4.5-22x50 FFP, Vortex
- XLR-2 MOA, Razor HD LHT 4.5-22x50 FFP, Vortex
- ZBR-1, Conquest V6 5-30x50, Zeiss
4.45
Apr 3, 2022
Reticles added:
- Impact-23 MOA, VX-6HD 4-24x52, Leupold
- Rimfire .17 HMR, Vantage 4-16×50, Hawke
- MRAD, TORIC FFP 2.5-15x44, Tract
- Impact-23 MOA, VX-6HD 4-24x52, Leupold
- Rimfire .17 HMR, Vantage 4-16×50, Hawke
- MRAD, TORIC FFP 2.5-15x44, Tract
4.44
Mar 13, 2022
Reticles added:
- Guerrilla Dot MIL Long, Arrowhead LPVO 1-10x24, Swampfox
- MRAD ELR, TORIC FFP 4.5-30x56, Tract
- MOA ELR, TORIC FFP 4.5-30x56, Tract
- Guerrilla Dot MIL Long, Arrowhead LPVO 1-10x24, Swampfox
- MRAD ELR, TORIC FFP 4.5-30x56, Tract
- MOA ELR, TORIC FFP 4.5-30x56, Tract
4.43
Feb 26, 2022
Reticles added:
- PTM1 MRAD, Optika6 5-30x56 FFP, Meopta
- OT, X3 TACTIX 1-8×24, Riton
- 7, Wraith HD 2-16x28, Sightmark
- 8, Wraith HD 2-16x28, Sightmark
- PTM1 MRAD, Optika6 5-30x56 FFP, Meopta
- OT, X3 TACTIX 1-8×24, Riton
- 7, Wraith HD 2-16x28, Sightmark
- 8, Wraith HD 2-16x28, Sightmark
4.42
Feb 19, 2022
Reticles added:
- R6, Geni GL 35R, InfiRay
- APR-2D MRAD, Titan 5-25x56 FFP, Element Optics
- MOA-35, ZT 5-27x50 FFP, Sniper
- R6, Geni GL 35R, InfiRay
- APR-2D MRAD, Titan 5-25x56 FFP, Element Optics
- MOA-35, ZT 5-27x50 FFP, Sniper
4.41
Feb 6, 2022
Reticles added:
- LS, PV 3-9х42L, Pilad, Russia
- HMD, VT-R 6-24X42AOE, Discovery
- WI-TF4, WHI 4-16X50 SF IR FFP, Westhunter
- PCD-RDY, Orion 4-16x44 MAX, Vector Optics
- LS, PV 3-9х42L, Pilad, Russia
- HMD, VT-R 6-24X42AOE, Discovery
- WI-TF4, WHI 4-16X50 SF IR FFP, Westhunter
- PCD-RDY, Orion 4-16x44 MAX, Vector Optics
4.40
Jan 1, 2022
Reticles added:
- V-Plex, Crossfire II 4-12x44, Vortex
- BDC 22 Rimfire, Neos 4-12×40, Athlon
- VPR MOA, SH4 4-16x50 GEN2 FFP, Arken
- V-Plex, Crossfire II 4-12x44, Vortex
- BDC 22 Rimfire, Neos 4-12×40, Athlon
- VPR MOA, SH4 4-16x50 GEN2 FFP, Arken
4.37
Sep 22, 2021
Added reticles:
- Windhold, 4.5-18×40 AR Optics, Bushnell
- BRi, SPECTRA 6x 3-18x56i, GPO
- ACSS Griffin X, SLX 1-8x FFP, Primary Arms
- Windhold, 4.5-18×40 AR Optics, Bushnell
- BRi, SPECTRA 6x 3-18x56i, GPO
- ACSS Griffin X, SLX 1-8x FFP, Primary Arms
4.23
Jan 12, 2021
Reticles added:
- Mil-Dot, 5.5-22x, Nightforce
- APR-1C MRAD, Helix 6-24x50 SFP, Element Optics
- EHR-1C MOA, Helix 6-24x50 SFP, Element Optics
- Plex, Z5 3.5-18x44, Swarovski
- Mil-Dot, 5.5-22x, Nightforce
- APR-1C MRAD, Helix 6-24x50 SFP, Element Optics
- EHR-1C MOA, Helix 6-24x50 SFP, Element Optics
- Plex, Z5 3.5-18x44, Swarovski
4.21
Nov 26, 2020
Reticles added:
- V-Plex, Diamondback 2-7x35 Rimfire, Vortex
- HSR-5i MOA, 3-15x Razor HD LHT, Vortex
- HSR-5i MRAD, 3-15x Razor HD LHT, Vortex
- APRS1 FFP IR MIL, Ares ETR 4.5-30×56, Athlon
- V-Plex, Diamondback 2-7x35 Rimfire, Vortex
- HSR-5i MOA, 3-15x Razor HD LHT, Vortex
- HSR-5i MRAD, 3-15x Razor HD LHT, Vortex
- APRS1 FFP IR MIL, Ares ETR 4.5-30×56, Athlon
4.13
Aug 18, 2020
Reticles added:
- FFP Mil, Sidewinder 4-16x50, Hawke
- FFP Mil, Sidewinder 6-24×56, Hawke
- 4D Dichro, Optika6 4.5-27x50 SFP, Meopta
- BDC Dichro, Optika6 5-30x56 FFP, Meopta
- FFP Mil, Sidewinder 4-16x50, Hawke
- FFP Mil, Sidewinder 6-24×56, Hawke
- 4D Dichro, Optika6 4.5-27x50 SFP, Meopta
- BDC Dichro, Optika6 5-30x56 FFP, Meopta
4.10
Jun 22, 2020
Reticles added:
- Rimfire .22 HV, Vantage 3-9x40, Hawke
- MOAR, ATACR 7-35x56 F1, Nightforce
- MOAR, ATACR 7-35x56 F2, Nightforce
- Triplex BDC, Vudu 1-8x24 SFP, EOTech
- Rimfire .22 HV, Vantage 3-9x40, Hawke
- MOAR, ATACR 7-35x56 F1, Nightforce
- MOAR, ATACR 7-35x56 F2, Nightforce
- Triplex BDC, Vudu 1-8x24 SFP, EOTech
4.08
Jun 7, 2020
1. Fixed button to send email to me
2. Reticles added:
- Horseshoe .308 M240 BDC, TA11H-308, Trijicon
- AR-BDC 3, Strike Eagle 1-8x, Vortex
2. Reticles added:
- Horseshoe .308 M240 BDC, TA11H-308, Trijicon
- AR-BDC 3, Strike Eagle 1-8x, Vortex
4.06
May 30, 2020
Reticles added:
- MIL-XT, ATACR 5-25x56 F1, Nightforce
- ACSS CQB-M5 5.56, GLx 2X Prism, Primary Arms
- ACSS CQB-M5 5.56, ACOG 1.5x16S, Trijicon
- ACSS Cyclops, SLx Compact 1x20 Prism, Primary Arms
- MIL-XT, ATACR 5-25x56 F1, Nightforce
- ACSS CQB-M5 5.56, GLx 2X Prism, Primary Arms
- ACSS CQB-M5 5.56, ACOG 1.5x16S, Trijicon
- ACSS Cyclops, SLx Compact 1x20 Prism, Primary Arms
4.02
Apr 12, 2020
Reticles added:
- M51i, Trail XQ38, Pulsar
- MPCT 2, 5-27x56, ZCO
- MPCT 1, 5-27x56, ZCO
- MPCT 3, 5-27x56, ZCO
- M51i, Trail XQ38, Pulsar
- MPCT 2, 5-27x56, ZCO
- MPCT 1, 5-27x56, ZCO
- MPCT 3, 5-27x56, ZCO
4.01
Apr 6, 2020
Reticles added:
- ATSR5 SFP IR MOA, Argos BTR GEN2 1-8×24, Athlon
- Long-Range MOA, 4.5-14x, Burris
- Deploy MOA FFP, Nitro 5-20x44, Bushnell
- Mildot 3, Optika6 5-30x56 RD FFP, Meopta
- 308 RD, Optika6 5-30x56 RD FFP, Meopta
- ATSR5 SFP IR MOA, Argos BTR GEN2 1-8×24, Athlon
- Long-Range MOA, 4.5-14x, Burris
- Deploy MOA FFP, Nitro 5-20x44, Bushnell
- Mildot 3, Optika6 5-30x56 RD FFP, Meopta
- 308 RD, Optika6 5-30x56 RD FFP, Meopta
4.00
Mar 8, 2020
Reticles added:
- BDC 600 IR, Talos 4-16×40, Athlon
- ARC-2, 4-14x44 FFP, Primary Arms
- M57Fi, Thermion XP50, Pulsar
- X51Fi-300, Thermion XP50, Pulsar
- Drop Zone 22LR, 3.5-10x36, Bushnell
- BDC 600 IR, Talos 4-16×40, Athlon
- ARC-2, 4-14x44 FFP, Primary Arms
- M57Fi, Thermion XP50, Pulsar
- X51Fi-300, Thermion XP50, Pulsar
- Drop Zone 22LR, 3.5-10x36, Bushnell
3.99
Mar 4, 2020
Reticles added:
- EBR-2D MRAD, Viper PST II 5-25x FFP, Vortex
- DLR-1, Stryker 4.5-30x56 FFP, Delta
- Guerrilla Dot MOA, Arrowhead LPVO 1-6x24, Swampfox
- Guerrilla Dot MOA, Arrowhead LPVO 1-8x24, Swampfox
- Guerrilla Dot MOA, Arrowhead LPVO 1-10x24, Swampfox
- EBR-2D MRAD, Viper PST II 5-25x FFP, Vortex
- DLR-1, Stryker 4.5-30x56 FFP, Delta
- Guerrilla Dot MOA, Arrowhead LPVO 1-6x24, Swampfox
- Guerrilla Dot MOA, Arrowhead LPVO 1-8x24, Swampfox
- Guerrilla Dot MOA, Arrowhead LPVO 1-10x24, Swampfox
3.98
Feb 5, 2020
Reticles added:
- 7, Wraith HD 4-32x50, Sightmark
- XLR, ART 6-24×50 M1200, Hilux
- M58i, Digisight Ultra N455, Pulsar
- M56Fi, Digisight Ultra N455, Pulsar
- 7, Wraith HD 4-32x50, Sightmark
- XLR, ART 6-24×50 M1200, Hilux
- M58i, Digisight Ultra N455, Pulsar
- M56Fi, Digisight Ultra N455, Pulsar
3.97
Feb 1, 2020
Fixed bug with internet-weather
3.95
Jan 23, 2020
Reticles added:
- ACSS Predator, 1-6x24, Primary Arms
- Deploy MIL FFP, Forge 4.5-27x50, Bushnell
- Deploy MOA FFP, Forge 4.5-27x50, Bushnell
- Guerrilla Dot BDC, Arrowhead LPVO 1-6x24, Swampfox
- Guerrilla Dot BDC, Arrowhead LPVO 1-8x24, Swampfox
- Guerrilla Dot BDC, Arrowhead LPVO 1-10x24, Swampfox
- ACSS Predator, 1-6x24, Primary Arms
- Deploy MIL FFP, Forge 4.5-27x50, Bushnell
- Deploy MOA FFP, Forge 4.5-27x50, Bushnell
- Guerrilla Dot BDC, Arrowhead LPVO 1-6x24, Swampfox
- Guerrilla Dot BDC, Arrowhead LPVO 1-8x24, Swampfox
- Guerrilla Dot BDC, Arrowhead LPVO 1-10x24, Swampfox
3.94
Jan 9, 2020
Reticles added:
- MAR-055 EVV 6-24*50 SFIR FFP HY1310, Marcool
- MAR-138, ALT 6-24x50 SFIR (HY1703-1), Marcool
- MAR-138, ALT 4-16X44 SFIR (HY1703), Marcool
- MAR-055 EVV 6-24*50 SFIR FFP HY1310, Marcool
- MAR-138, ALT 6-24x50 SFIR (HY1703-1), Marcool
- MAR-138, ALT 4-16X44 SFIR (HY1703), Marcool
3.93
Dec 29, 2019
1. Table sending fix
2. Reticles added:
- APRS2 FFP MIL, Midas TAC 6-24×50, Athlon
- VTC-1 MIL, Artemis 1-8x26 FFP, Vector Optics
2. Reticles added:
- APRS2 FFP MIL, Midas TAC 6-24×50, Athlon
- VTC-1 MIL, Artemis 1-8x26 FFP, Vector Optics
3.92
Dec 6, 2019
Bug fix
3.91
Dec 3, 2019
Added reticles:
- APRS3 FFP MIL, Midas TAC 5-25×56, Athlon
- EP4, 4-16x50 FFP MIL, Arken
- EP4, 6-24x50 FFP MIL, Arken
- APRS3 FFP MIL, Midas TAC 5-25×56, Athlon
- EP4, 4-16x50 FFP MIL, Arken
- EP4, 6-24x50 FFP MIL, Arken
3.90
Nov 10, 2019
Added reticles:
- MAR-133, 4-16X44 SFIR FFP, Marcool
- FMC-1, 1-8x24, March
- MIL-R, SHV 4-14x50 F1, Nightforce
- MIL-R, ATACR 5-25x56 F1, Nightforce
- MIL-R, ATACR 7-35x56 F1, Nightforce
- MIL-R, ATACR 4-16x42 F1, Nightforce
- SHRW, RS.3 5-30x50 RS FFP, Maven
- MOA-2, RS.3 5-30x50 RS FFP, Maven
- MAR-133, 4-16X44 SFIR FFP, Marcool
- FMC-1, 1-8x24, March
- MIL-R, SHV 4-14x50 F1, Nightforce
- MIL-R, ATACR 5-25x56 F1, Nightforce
- MIL-R, ATACR 7-35x56 F1, Nightforce
- MIL-R, ATACR 4-16x42 F1, Nightforce
- SHRW, RS.3 5-30x50 RS FFP, Maven
- MOA-2, RS.3 5-30x50 RS FFP, Maven
3.89
Oct 18, 2019
Added reticles:
- MIL-C, NX8 4-32x50 F1, Nightforce
- MAR-130, 5-30X56 SF FFP, Marcool
- M57Fi, Digisight Ultra N455, Pulsar
- MV02i, 3-12x Jaeger, Yukon
- MIL-C, NX8 4-32x50 F1, Nightforce
- MAR-130, 5-30X56 SF FFP, Marcool
- M57Fi, Digisight Ultra N455, Pulsar
- MV02i, 3-12x Jaeger, Yukon
3.88
Oct 8, 2019
Added reticles:
- CSR.2, 3-12x44 FFP, SHR Optics
- MRAD Milling, TANGO4 6-24x50, Sig Sauer
- MOA Milling, TANGO4 6-24x50, Sig Sauer
- CSR.2, 3-12x44 FFP, SHR Optics
- MRAD Milling, TANGO4 6-24x50, Sig Sauer
- MOA Milling, TANGO4 6-24x50, Sig Sauer
3.87
Sep 17, 2019
Bug fix with CCH reticle from Leupold
3.86
Sep 9, 2019
Added reticles:
- ZMOA-2, Conquest V6 3-18x50, Zeiss
- Deploy MOA, Forge 4.5-27x50, Bushnell
- Advanced BDC, Monarch 5, 2-10x, Nikon
- ZMOA-2, Conquest V6 3-18x50, Zeiss
- Deploy MOA, Forge 4.5-27x50, Bushnell
- Advanced BDC, Monarch 5, 2-10x, Nikon
3.85
Aug 27, 2019
Added reticles:
- CCH, VX-3i LRP 6.5-20, Leupold
- MAR-126, 10x44, Marcool
- Sharpshooter MIL, 6-24x50, Swampfox
-Sharpshooter MOA, 6-24x50, Swampfox
- CCH, VX-3i LRP 6.5-20, Leupold
- MAR-126, 10x44, Marcool
- Sharpshooter MIL, 6-24x50, Swampfox
-Sharpshooter MOA, 6-24x50, Swampfox
3.83
Aug 7, 2019
Added reticles:
- SHR FFP MIL, SH-4 4-14x44, Arken
- RT-S, 6-24X50IR-FFP, Riton
- EBR-7C MRAD, Razor HD Gen II 4.5-27x56, Vortex
- EBR-7C MOA, Razor HD Gen II 4.5-27x56, Vortex
- SHR FFP MIL, SH-4 4-14x44, Arken
- RT-S, 6-24X50IR-FFP, Riton
- EBR-7C MRAD, Razor HD Gen II 4.5-27x56, Vortex
- EBR-7C MOA, Razor HD Gen II 4.5-27x56, Vortex
3.82
Jul 10, 2019
Added reticles:
- MSR2, K525i 5-25x56, Kahles
- Ascent, Genesis 4-14x44 FFP, Blackhound
- MDR, 1-8x24 PM II ShortDot Dual CC, Schmidt&Bender
- MSR2, K525i 5-25x56, Kahles
- Ascent, Genesis 4-14x44 FFP, Blackhound
- MDR, 1-8x24 PM II ShortDot Dual CC, Schmidt&Bender
3.81
Jun 8, 2019
Added reticles:
- M57Fi, Sightline n455, Yukon
- #4, ZX5 3-15x56, Minox
- VTC-2 MIL, Thanator 1-8x24 SFP, Vector Optics
- MOAK, K525i 5-25x56, Kahles
- M57Fi, Sightline n455, Yukon
- #4, ZX5 3-15x56, Minox
- VTC-2 MIL, Thanator 1-8x24 SFP, Vector Optics
- MOAK, K525i 5-25x56, Kahles
3.80
May 22, 2019
Added reticles:
- MOAK, K1050 10-50x56, Kahles
- BLR SFP MOA, Argos BTR 10-40×56, Athlon
- HK, VT-2 4-16x50SFIR, Discovery
- MOAK, K1050 10-50x56, Kahles
- BLR SFP MOA, Argos BTR 10-40×56, Athlon
- HK, VT-2 4-16x50SFIR, Discovery
3.79
Apr 17, 2019
Added reticles:
- Firedot 4, VX-R 1.5-4х, Leupold
- X01i, 1.5-6x Jaeger, Yukon
- Tactical Dot, 1-6×24 Frontier 30 Hawke
- .223/.308 Marksman, Endurance 6-18×50, Hawke
- Firedot 4, VX-R 1.5-4х, Leupold
- X01i, 1.5-6x Jaeger, Yukon
- Tactical Dot, 1-6×24 Frontier 30 Hawke
- .223/.308 Marksman, Endurance 6-18×50, Hawke
3.78
Jun 17, 2009
Added reticles:
- EBR-4 MOA, Strike Eagle 4-24x50, Vortex
- Ballistic AR, RT-6 1-6x24, Burris
- Mil Pro (10×), Frontier SF 3-15×44, Hawke
3.77
Jun 17, 2009
Added reticles:
- FC-MOA, NX8 1-8x24 F1, Nightforce
- T4, 4-16x50, Rudolph
- TDS-Plex, Z6 2-12x50, Swarovski
- TMD-HW, Pinnacle 5-30x50 TMD, Sightmark
iStrelok FAQ
Click here to learn how to download iStrelok in restricted country or region.
Check the following list to see the minimum requirements of iStrelok.
iPhone
iPad
iStrelok supports English, Italian, Polish, Russian, Spanish
