f/ Tools vs SIRUI Master
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
f/ Tools
This photography tool offers a suite of calculators for concepts like depth of field, print resolution, and flash exposure. It helps users visually grasp complex photographic principles with integrated help and a glossary. The app also includes a camera bag feature with lens limits.
- Graphic depth of field calculator
- Graphic Airy disc calculator
- Graphic format calculator
- Motion freeze calculator
- Graphic blur size calculator
- Graphic flash exposure calculator
- Camera bag with lens limits
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f/Tools is a set of tools for digital and analog photography. Explore sensor sharpness, depth of field, print resolution, bokeh size, flash exposure, and more — all in one place. Designed to help you visually understand complex photographic concepts, with built-in help and a glossary. Features: • Graphic depth of field calculator • Graphic Airy disc calculator • Graphic format (scene/print) calculator • Motion freeze calculator • Graphic blur size calculator • Graphic flash exposure calculator • Camera bag with lens limits • Quick setup with popular camera brands included
SIRUI Master
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通过SIRUI Master APP可以控制云台和调节参数，并可以轻松完成延时摄影等职能拍摄功能。1、菜单按键,可以查看WiFi状态信息，云台设备固件版本信息；2、一键回中按键、180度转向按键、用户可以使用虚拟遥杆按键控制云台俯仰轴、横滚轴、航向轴的运动。3、支持多种功能模式：PF航向轴跟随模式、GL全锁定模式、HL全跟随模式、FPV全域模式、FL盗梦空间模式，适应各种应用场景需求。4、点击校准按键进入校准模式。5、点击角度偏差设置按键，可以打开角度设置界面，可以调整Pitch俯仰轴、Roll横滚轴的角度上下偏差数值。6、可以设置电机力矩、可以让云台进入休眠模式、设备状态信息。
Screenshots
Verdict
The clearest difference is price: SIRUI Master at Free against f/ Tools's $3.99. SIRUI Master also leads on iOS requirement (8.0 vs 15.5). f/ Tools's advantage is update cadence (every 2 weeks vs every 2 months) and chart position (#124 vs unranked). On ads, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
SIRUI Master is free to download; f/ Tools costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.
f/ Tools ships an update every 2 weeks, SIRUI Master every 2 months. The most recent releases landed on October 1, 2026 and October 9, 2026 respectively.
| Parameter | f/ Tools | SIRUI Master |
|---|---|---|
| Price | $3.99 | Free — better |
| Rating | 3.7 (6 ratings) — better | — |
| Positive reviews | 93.3% of reviews | — |
| Number of ratings | 6 — better | — |
| Update frequency | Every 2 weeks — better | Every 2 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Best chart rank | #124 — better | — |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 15.5 | 8.0 — better |
| Further details — not scored | ||
| Size | 12 MB | 41 MB |
| Age rating | 4+ | 4+ |
| Developer | David Quiles | 思锐 |
In-app purchases
f/ Tools
No in-app purchases
SIRUI Master
No in-app purchases
