Meltum vs Calorendar
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Meltum
This app provides detailed statistics for Apple Watch Activity Rings, helping users track their fitness progress. It offers insights into current and longest streaks, personal bests for daily activity, and weekly activity levels. An optional one-time purchase unlocks unlimited stats.
- Current streaks tracking
- Top daily activity records
- Longest streak history
- Weekly activity summaries
- Apple Health data integration
- Privacy-focused data collection
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Meltum is an iPhone app for Apple Watch users, who love filling their Activity Rings, and are interested in viewing different stats about their Activity data. Note: Only users with a paired Apple Watch shall be able to use the app. Meltum shows stats by accessing data collected by the Apple Watch. Within the app, we require permission for read access to your Activity data from the Apple Health app to calculate your stats. CURRENT STREAKS Now you have easy access to all your current streaks and when they started TOP DAYS Shows your personal records for each of your Move, Exercise and Stand rings. TOP STREAKS Shows your longest streaks of reaching your Move, Exercise and Stand Goals, and of completing all the rings. TOP WEEKS You can see which week you were most active in MELTUM PRO Meltum is free to use, with no ads and collects no Health data. However, for viewing unlimited stats, there is a one-time purchase of Meltum Pro which unlocks all features without limits. COMMUNITY We are just getting started and are looking forward to your feedback and feature requests. Join the conversation on Reddit at our community /r/Meltum, and vote on feature requests and share your stories. SUPPORT Send us an email at hello@meltum.com for feedback, reporting bugs and requesting features. PRIVATE Meltum collects minimal anonymous usage data for improving the app. We have a very easy-to-understand Privacy Policy at meltum.com/privacy/ Technical requirements: The minimum iOS version supported by Meltum is 14.0. Read access to Activity data from the Apple Health app is required to view stats based on that data. Meltum is an iPhone-only app, and does not function as expected on an iPad as Apple Health app is unavailable on iPad.
Calorendar
This app visually represents your workout intensity through color. The more calories you burn, the brighter your display becomes. Customize themes and showcase your progress on your home screen.
- Calorie burn visualization
- Color-coded intensity
- Customizable themes
- Home screen widget support
- Workout progress tracking
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The more calories you burn from workouts, the brighter your colors will be. Change the theme and display it on your home screen.
Screenshots
Verdict
The clearest difference is review sentiment: Calorendar at 100% against Meltum's 67%. Calorendar also leads on rating (5.0 vs 4.8). Meltum's advantage is update cadence (fortnightly vs monthly) and iOS requirement (14.0 vs 17.0). On price, ratings volume, ads and in-app purchases 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. Meltum sells 1 one-off in-app purchase and Calorendar sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
Calorendar holds the better App Store score, 5.0 against 4.8. Both are backed by a comparable volume of ratings — 8 and 4 respectively. Written reviews point the same way: 67% of Meltum's written reviews are positive against 100% of Calorendar's.
Meltum ships an update fortnightly, Calorendar monthly. The most recent releases landed on October 17, 2026 and October 19, 2026 respectively.
| Parameter | Meltum | Calorendar |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (8 ratings) | 5.0 (4 ratings) — better |
| Positive reviews | 66.7% of reviews | 100.0% of reviews — better |
| Number of ratings | 8 — better | 4 |
| Update frequency | Fortnightly — better | Monthly |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 14.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 3 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Parag Purkayastha | Jenny Kim |
Customer experience
Meltum
Calorendar
In-app purchases
Meltum
- Meltum Pro$7.99
Calorendar
- StarryYellow$0.99
- Workout$0.99
- BlackWhite$0.99









