# StudyLog vs Sum

The clearest difference is review sentiment: Sum at 100% against StudyLog's 50%. Sum also leads on rating (5.0 vs 4.2) and ads (none vs shown). StudyLog's advantage is ratings volume (6 vs 2). On price, update cadence, in-app purchases and monetization model there is nothing between them.

Both are free to download. StudyLog sells 2 in-app purchases, starting at $2.99 per month and Sum sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Sum holds the better App Store score, 5.0 against 4.2. Both are backed by a comparable volume of ratings — 6 and 2 respectively. Written reviews point the same way: 50% of StudyLog's written reviews are positive against 100% of Sum's.

StudyLog ships an update every 10 days, Sum every 3 weeks. The most recent releases landed on November 8, 2026 and November 9, 2026 respectively.

## The numbers

| Metric | StudyLog | Sum |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.2 (6 ratings)](https://appshunter.io/ios/app/studylog-study-tracker-and-log/id6742389774/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/sum-study-timer-and-tracker/id6761293821/reviews)** |
| Number of ratings | **6** | 2 |
| Positive reviews | 50.0% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 10 days** | Every 3 weeks |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 10 MB | 3 MB |
| Requires iOS | **17.6** | 18 |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [BYNET](https://appshunter.io/developer/1811735131) | [Nene Nakagawa](https://appshunter.io/developer/1821103094) |

## What reviewers say

### StudyLog

[App page](https://appshunter.io/ios/app/studylog-study-tracker-and-log/id6742389774)

Effortlessly track your study sessions and exam preparation with a focus on speed and simplicity. Features include instant recording, goal setting, and visual progress tracking. Enjoy cloud backup and customization options for a distraction-free learning experience.

**Highlights:** Instant study session recording, Automatic time tracking by subject, Study streak tracking, Customizable study goals, Calendar and heatmap visualizations, Home screen widget, Secure cloud backup

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Monthly | $2.99 | per month |
| Premium Yearly | $14.99 | per year |


### Sum

[App page](https://appshunter.io/ios/app/sum-study-timer-and-tracker/id6761293821)

Track and manage your study time by subject with a simple timer. Log sessions, add notes, and visualize your progress with weekly graphs and a calendar. Focus on learning without distractions.

**Highlights:** Study time tracking, Subject and material logging, Weekly progress graphs, Calendar visualization, Study streaks, Pomodoro timer

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Stackd Pro | $1.99 | one-time |


## Frequently asked questions

### Is StudyLog free?

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

### Is Sum free?

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

### Which has better reviews, StudyLog or Sum?

Sum is rated higher. StudyLog averages 4.2 out of 5 from 6 ratings, while Sum averages 5.0 from 2 ratings.

### Do StudyLog or Sum have ads?

StudyLog shows ads; Sum does not.

### Which is updated more often, StudyLog or Sum?

StudyLog ships an update every 10 days, and Sum every 3 weeks. Most recently, StudyLog was updated on November 8, 2026 and Sum on November 9, 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.*