X Factor vs Meltum
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
X Factor
Easily track your daily calorie balance for weight management. Focus on calories in and out, with features to predict target weight achievement and verify data accuracy. Integrates with HealthKit for automatic calorie import.
- Daily calorie balance tracking
- Weight and activity calorie logging
- Target weight prediction
- BMI and BMR calculation
- HealthKit integration
- Weight unit support
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X Factor is designed to quickly and easily track your daily calorie balance. No micro-nutrients. No detailed workout info. Just calories in and calories out, because when it comes to maintaining a healthy weight, that's what matters. With X Factor, it takes only a few seconds to record your daily weight, calories eaten, and activity calories. And with Health Integration enabled, active energy calories are imported automatically from HealthKit. The powerful Target Weight feature lets you set calorie and weight targets to see how your weight will change with different calorie balances. Once you've entered your calorie balance for a few days, the Accuracy feature compares the calorie balance data you've entered against the calories associated with changes to your weight, making it easy to verify that your data is correct. Whatever your weight management goals, your daily calorie balance is the key to acheiving them. Without it, you're stuck in a constant state of guessing that undermines your results. Take control of your weight with the power of clear, concise measurement. Features: - Lifetime tracking of weight, calories eaten and activity calories - Predicts when target weight will be reached - Calculates BMI and BMR values - Supports kilograms/pounds/stones weight units - 3D Touch shortcuts for logging data Health App Integration: - import active energy calories, age, gender and height - export your weight
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.
Screenshots
Verdict
The clearest difference is in-app purchases: X Factor at none against Meltum's 1. X Factor also leads on rating (5.0 vs 4.8) and update cadence (weekly vs fortnightly). On price, review sentiment, ratings volume and ads 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. X Factor asks for nothing beyond the download.
X Factor holds the better App Store score, 5.0 against 4.8. Both are backed by a comparable volume of ratings — 4 and 8 respectively. Written reviews complicate that: 60% of X Factor's written reviews are positive against 67% of Meltum's, so the app with the better star average is not the one people write more warmly about.
X Factor ships an update weekly, Meltum fortnightly. The most recent releases landed on September 30, 2026 and October 1, 2026 respectively.
| Parameter | X Factor | Meltum |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (4 ratings) — better | 4.8 (8 ratings) |
| Positive reviews | 60.0% of reviews | 66.7% of reviews — better |
| Number of ratings | 4 | 8 — better |
| Update frequency | Weekly — better | Fortnightly |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 8.0 — better | 14.0 |
| Further details — not scored | ||
| Size | 20 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | Daniel Hansen | Parag Purkayastha |
Customer experience
X Factor
Meltum
In-app purchases
X Factor
No in-app purchases
Meltum
- Meltum Pro$7.99









