f/ Tools vs Spot Meter Pro
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 toolkit for digital and film photography. Explore depth of field, compare defocus across lenses, and try different shutter speeds before you shoot. Plan your prints and calculate flash exposure, with interactive diagrams that make photographic concepts easier to understand. Features: • Depth of field and hyperfocal distance See near and far focus limits and how they change with aperture, focal length, and focus distance. • Defocus comparison Explore how focal length, aperture, and subject distance affect blur, with a magnifier for a closer look. • Freeze motion Calculate the shutter speed needed to limit motion blur based on subject speed, distance, and focal length. • Motion blur Try different shutter speeds and visualize the resulting motion trail. • Diffraction and resolution Explore Airy disc size and estimated effective resolution as you change the aperture. • Framing and prints Calculate scene dimensions, adjust cropping, and find the circle of confusion and minimum resolution needed for your print size and viewing distance. • Flash exposure Calculate exposure at different distances using guide number, flash power, aperture, and ISO. • Your cameras and lenses Save your equipment and set lens limits for aperture, focal length, and focus distance. Get started quickly with built-in camera presets. Built-in help explains the controls, calculations, and photographic terms within each tool.
Spot Meter Pro
This app functions as a professional light meter for film photography, measuring light within a 2° angle of view. It offers customizable settings for aperture, shutter speed, and film speed, along with logging capabilities for readings.
- 2° FOV light metering
- Av and Tv priority modes
- Zone System and Tone Picker metering
- Customizable increments and range
- Log readings
- 1° FOV with telephoto lens
- Meter calibration
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An essential tool for film photography. Designed to function like a real spot meter, Spot Meter Pro measures light within a 2° circular angle of view for accurate exposure value readings. Select your film speed, then adjust aperture or shutter speed for Av or Tv priority. Optionally, adjust the “middle-grey” reading using the Zone System or Tone Picker metering modes to achieve your desired exposure. Additional features: - Customize aperture, shutter speed, and film speed increments and range - Log readings for future reference - iOS devices equipped with a telephoto lens can take a 1° circular angle of view reading - Calibrate the light meter in 1/10th increments - Toggle black & white mode
Screenshots
Verdict
The clearest difference is rating: Spot Meter Pro at 4.5 against f/ Tools's 3.7. Spot Meter Pro also leads on ratings volume (22 vs 6) and iOS requirement (14.4 vs 17.0). f/ Tools's advantage is review sentiment (93% vs 67%) and update cadence (every 2 weeks vs every 2 months). On ads, in-app purchases, monetization model 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
f/ Tools costs $3.99 and Spot Meter Pro $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Spot Meter Pro holds the better App Store score, 4.5 against 3.7. Both are backed by a comparable volume of ratings — 6 and 22 respectively. Written reviews complicate that: 93% of f/ Tools's written reviews are positive against 67% of Spot Meter Pro's, so the app with the better star average is not the one people write more warmly about.
f/ Tools ships an update every 2 weeks, Spot Meter Pro every 2 months. The most recent releases landed on October 26, 2026 and October 30, 2026 respectively.
| Parameter | f/ Tools | Spot Meter Pro |
|---|---|---|
| Price | $3.99 — better | $4.99 |
| Rating | 3.7 (6 ratings) | 4.5 (22 ratings) — better |
| Positive reviews | 93.3% of reviews — better | 66.7% of reviews |
| Number of ratings | 6 | 22 — better |
| Update frequency | Every 2 weeks — better | Every 2 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 17.0 | 14.4 — better |
| Further details — not scored | ||
| Size | 5 MB | 75 MB |
| Age rating | 4+ | 4+ |
| Developer | David Quiles | Tebo Labs Inc. |
Customer experience
f/ Tools
Spot Meter Pro
In-app purchases
f/ Tools
No in-app purchases
Spot Meter Pro
No in-app purchases
Questions
Is f/ Tools free?
Is Spot Meter Pro free?
Which has better reviews, f/ Tools or Spot Meter Pro?
Do f/ Tools or Spot Meter Pro have ads?
Which is updated more often, f/ Tools or Spot Meter Pro?
Other comparisons
