GaugeWatcher vs Inclinometer Pro
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
GaugeWatcher
Access real-time river flow data without needing an account or encountering advertisements. Discover nearby gauges, monitor flow rates, and save your preferred locations for quick access.
- Real-time river flow data
- Discover nearby gauges
- Check flow rates
- Bookmark favorite gauges
- No signup required
- Ad-free experience
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Simple river flow data. No signup required. No ads. No fluff. Find nearby gauges, check flow rates, bookmark favorites. That's it.
Inclinometer Pro
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Inclinometer Pro is a precision level for iPhone, iPad and Apple Watch. Free to use, with a one-time Pro upgrade. THE LEVEL • Surface mode: a bubble level for both directions • Edge mode: one big angle on a rotating horizon • Degrees, percent grade, mm/m or ratio • Calibrate, hold the reading, and mirror it to Apple Watch CAMERA MODE • Hang pictures straight: point at a frame and see how much to raise one side • Laser level in the camera: put a level, plumb or sloped line on the wall, with its height above the floor • Try it three times for free PRO: ONE PURCHASE, NO SUBSCRIPTION • Unlimited camera mode • Target slope, such as a 2% fall for drainage • Sound guide that beeps faster as you get closer to level • Saved readings with notes, photos and CSV export • Five extra themes, including Night and High-Vis Bought the app before it was free? Pro is already yours.
Screenshots
Verdict
The clearest difference is in-app purchases: GaugeWatcher at none against Inclinometer Pro's 1. Inclinometer Pro's advantage is iOS requirement (18.0 vs 26.0). On price, update cadence, ads 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
Both are free to download. Inclinometer Pro sells 1 one-off in-app purchase. GaugeWatcher asks for nothing beyond the download.
GaugeWatcher ships an update weekly, Inclinometer Pro every 6 days. The most recent releases landed on November 8, 2026 and November 4, 2026 respectively.
| Parameter | GaugeWatcher | Inclinometer Pro |
|---|---|---|
| Price | Free | Free |
| Rating | 3.8 (9 ratings) — better | — |
| Positive reviews | 66.7% of reviews | — |
| Number of ratings | 9 — better | — |
| Update frequency | Weekly | Every 6 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPad, Mac, Apple Watch — better | iPhone, iPad, Apple Watch |
| Requires iOS | 26.0 | 18.0 — better |
| Further details — not scored | ||
| Size | 29 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | Andrew Althage | ERLEND JOHNSRUD VAAGE |
In-app purchases
GaugeWatcher
No in-app purchases
Inclinometer Pro
- Inclinometer Pro$2.99
Questions
Is GaugeWatcher free?
Is Inclinometer Pro free?
Do GaugeWatcher or Inclinometer Pro have ads?
Which is updated more often, GaugeWatcher or Inclinometer Pro?
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