# Study Time Record chart vs Drill.ai

The clearest difference is in-app purchases: Study Time Record chart at none against Drill.ai's 1. Drill.ai's advantage is update cadence (every 2 days vs every 2 months) and iOS requirement (15.1 vs 17.6). On price, ads and device support there is nothing between them.

Both are free to download. Drill.ai sells 1 in-app purchase, starting at $9.99 per month. Study Time Record chart asks for nothing beyond the download.

Study Time Record chart ships an update every 2 months, Drill.ai every 2 days. The most recent releases landed on October 3, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | Study Time Record chart | Drill.ai |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 2 months | **Every 2 days** |
| Size | 7 MB | 48 MB |
| Requires iOS | 17.6 | **15.1** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [YUTAKA IZUMIYAMA](https://appshunter.io/developer/1657248429) | [Yuta Kobayashi](https://appshunter.io/developer/1858966177) |

## What reviewers say

### Study Time Record chart

[App page](https://appshunter.io/ios/app/study-time-record-chart/id6738596821)

**In-app purchases:** none


### Drill.ai

[App page](https://appshunter.io/ios/app/drillai/id6756187061)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Proプラン（月額） | $9.99 | per month |


## Frequently asked questions

### Is Study Time Record chart free?

Study Time Record chart is free to download, with no in-app purchases.

### Is Drill.ai free?

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

### Do Study Time Record chart or Drill.ai have ads?

Both Study Time Record chart and Drill.ai show ads.

### Which is updated more often, Study Time Record chart or Drill.ai?

Study Time Record chart ships an update every 2 months, and Drill.ai every 2 days. Most recently, Study Time Record chart was updated on October 3, 2026 and Drill.ai on September 24, 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.*