# UsageMaster vs Charge

The clearest difference is in-app purchases: Charge at none against UsageMaster's 2. Charge also leads on ads (none vs shown) and iOS requirement (17.0 vs 26.0). UsageMaster's advantage is update cadence (every 3 days vs fortnightly). On price and device support there is nothing between them.

Both are free to download. UsageMaster sells 2 one-off in-app purchases. Charge asks for nothing beyond the download.

UsageMaster ships an update every 3 days, Charge fortnightly. Both last shipped on October 31, 2026.

## The numbers

| Metric | UsageMaster | Charge |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 3 days** | Fortnightly |
| Monetization | — | Free |
| Size | 28 MB | 2 MB |
| Requires iOS | 26.0 | **17.0** |
| Devices | **iPhone, Mac** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [MyeongJin Lee](https://appshunter.io/developer/1723279387) | [Dusan Baek](https://appshunter.io/developer/1530611513) |

## What reviewers say

### UsageMaster

[App page](https://appshunter.io/ios/app/usagemaster-ai-usage-tracker/id6772029068)

**Features:** Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 7-day Trial | Free | one-time |
| UsageMaster Pro | $1.99 | one-time |


### Charge

[App page](https://appshunter.io/ios/app/charge-ai-usage-tracker/id6796766465)

Track your AI coding usage and costs across various providers directly from your iPhone. Monitor your remaining time, weekly caps, and daily spending with at-a-glance widgets and detailed dashboards. Setup is quick, and privacy is prioritized with no access to your code or conversations.

**Highlights:** Rate-limit gauges per provider, Burn-rate forecasts, Cost dashboard (daily, weekly, monthly), Plan badges and account separation, Multi-computer support, Home and Lock Screen widgets, Streak heatmap and cost trend

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is UsageMaster free?

UsageMaster is free to download, with in-app purchases available.

### Is Charge free?

Charge is free to download, with no in-app purchases.

### Do UsageMaster or Charge have ads?

UsageMaster shows ads; Charge does not.

### Which is updated more often, UsageMaster or Charge?

UsageMaster ships an update every 3 days, and Charge fortnightly. Most recently, UsageMaster was updated on October 31, 2026 and Charge on October 31, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*