Diametre vs Altly
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
Diametre
Easily calculate the diameter of your roller shutter or blind axis without disassembly or measuring tools. This practical utility app provides a simple solution for accurate measurements.
- Calculate roller shutter axis diameter
- Calculate blind axis diameter
- No disassembly required
- No caliper needed
- Simple and practical interface
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Une application simple et pratique qui permet de calculer le diamètre de son axe de volet roulant ou de store sans nécessiter de démontage ni utiliser de pied à coulisse.
Altly
Instantly view your current altitude and elevation with a clean, modern interface. It also displays your location on a map, coordinates, place name, and nearby peaks. Supports Apple Watch and unit switching for global usability.
- Live altitude and elevation
- Map view with location and coordinates
- Nearby peaks identification
- Meters/feet unit switching
- Apple Watch app and complications
- VoiceOver and Dynamic Type support
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Altly is a simple and beautifully designed indie app that lets you check your current altitude in real time. Open the app and instantly see your elevation with a clean, modern interface built to stay focused on what matters. The background subtly changes with altitude, giving the app a more immersive feel while keeping everything easy to read. When you need more context, Altly can also show your location on a map, along with your coordinates, place name through reverse geocoding, and nearby peaks when you are close to a known summit. Altly includes an Apple Watch app with complications, so you can check your altitude right from your wrist or glance at it directly from your watch face. You can also switch between meters and feet, making Altly useful wherever you are. Built with care and accessibility in mind, Altly supports VoiceOver and Dynamic Type, and contains no ads. Features β’ Live altitude and elevation β’ Precision indicator β’ Switch between meters and feet β’ Map view with current location β’ Coordinates display β’ Place name with reverse geocoding β’ Nearby peaks on the map β’ Apple Watch app included β’ Apple Watch complications β’ Clean, minimalist, modern interface β’ Dynamic background based on altitude β’ VoiceOver and Dynamic Type support β’ No ads Altly is an independent app made to be simple, useful, and pleasant to use.
Screenshots
Verdict
The clearest difference is price: Diametre at Free against Altly's $1.99. Diametre also leads on iOS requirement (13.0 vs 26.0). Altly's advantage is review sentiment (67% vs 50%). On ads, in-app purchases and device support there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Diametre is free to download; Altly costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | Diametre | Altly |
|---|---|---|
| Price | Free β better | $1.99 |
| Positive reviews | 50.0% of reviews | 66.7% of reviews β better |
| Update frequency | β | Fortnightly |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free β better | Paid |
| Devices | iPhone, iPad, iPod β better | iPhone, Apple Watch |
| Requires iOS | 13.0 β better | 26.0 |
| Further details β not scored | ||
| Size | 28 MB | 42 MB |
| Age rating | 17+ | 4+ |
| Developer | franck bertaux | Benjamin GODARD |
Customer experience
Diametre
Altly
In-app purchases
Diametre
No in-app purchases
Altly
No in-app purchases









