# Spaced Repetition vs Studyline

The clearest difference is rating: Studyline at 5.0 against Spaced Repetition's 4.3. Studyline also leads on in-app purchases (none vs 3) and update cadence (every 6 days vs monthly). Spaced Repetition's advantage is ads (none vs shown) and iOS requirement (15.0 vs 17.0). On price, ratings volume and device support there is nothing between them.

Both are free to download. Spaced Repetition sells 3 in-app purchases, starting at $1.99 per month. Studyline asks for nothing beyond the download.

Studyline holds the better App Store score, 5.0 against 4.3. Both are backed by a comparable volume of ratings — 6 and 5 respectively. Written reviews point the same way: 88% of Spaced Repetition's written reviews are positive against 100% of Studyline's.

Spaced Repetition ships an update monthly, Studyline every 6 days. The most recent releases landed on October 24, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | Spaced Repetition | Studyline |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.3 (6 ratings)](https://appshunter.io/ios/app/spaced-repetition-synapse/id6672094098/reviews) | **[5.0 (5 ratings)](https://appshunter.io/ios/app/studyline-modern-flashcards/id6807297862/reviews)** |
| Number of ratings | **6** | 5 |
| Positive reviews | 87.5% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Monthly | **Every 6 days** |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Size | 34 MB | 15 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [SAMUEL PREMJI](https://appshunter.io/developer/1767673207) | [Daniel Chen](https://appshunter.io/developer/1260380711) |

## What reviewers say

### Spaced Repetition

[App page](https://appshunter.io/ios/app/spaced-repetition-synapse/id6672094098)

This app simplifies revision planning with a personalized schedule and timely reminders. It offers a calendar view and customizable intervals, eliminating the need for manual flashcard creation. Focus on learning without the stress of organizing your study plan.

**Highlights:** Personalized revision plan creation, Timely revision reminders, Intuitive calendar visualization, Customizable revision intervals, No flashcard creation required

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly subscription | $1.99 | per month |
| Annual | $9.99 | per year |
| Synapse premium | $29.99 | one-time |


### Studyline

[App page](https://appshunter.io/ios/app/studyline-modern-flashcards/id6807297862)

This app transforms flashcards into interactive practice with six different formats. It offers flexible study sessions, efficient card creation, and robust organization tools. Track your progress and recall to optimize your learning.

**Highlights:** Six interactive flashcard formats, Mixed or specific study session modes, Flexible study scheduling and timers, Multiple import options (CSV, TSV, TXT), Folder and set organization, Recall rating for spaced repetition, Detailed progress tracking and stats

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

**In-app purchases:** none


## Frequently asked questions

### Is Spaced Repetition free?

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

### Is Studyline free?

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

### Which has better reviews, Spaced Repetition or Studyline?

Studyline is rated higher. Spaced Repetition averages 4.3 out of 5 from 6 ratings, while Studyline averages 5.0 from 5 ratings.

### Do Spaced Repetition or Studyline have ads?

Studyline shows ads; Spaced Repetition does not.

### Which is updated more often, Spaced Repetition or Studyline?

Spaced Repetition ships an update monthly, and Studyline every 6 days. Most recently, Spaced Repetition was updated on October 24, 2026 and Studyline on October 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.*