# Flash+ vs TimeCrystal

The clearest difference is rating: Flash+ at 5.0 against TimeCrystal's 4.1. Flash+ also leads on review sentiment (100% vs 67%) and update cadence (every 2 days vs fortnightly). TimeCrystal's advantage is in-app purchases (none vs 10) and iOS requirement (13.0 vs 15.6). On price, ratings volume, ads and monetization model there is nothing between them.

Both are free to download. Flash+ sells 10 one-off in-app purchases. TimeCrystal asks for nothing beyond the download.

Flash+ holds the better App Store score, 5.0 against 4.1. Both are backed by a comparable volume of ratings — 9 and 9 respectively. Written reviews point the same way: 100% of Flash+'s written reviews are positive against 67% of TimeCrystal's.

Flash+ ships an update every 2 days, TimeCrystal fortnightly. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Flash+ | TimeCrystal |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (9 ratings)](https://appshunter.io/ios/app/flash-plus/id1503417037/reviews)** | [4.1 (9 ratings)](https://appshunter.io/ios/app/timecrystal-ai-time-machine/id6449464951/reviews) |
| Number of ratings | 9 | 9 |
| Positive reviews | **100.0% of reviews** | 66.7% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 days** | Fortnightly |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 8 MB | 107 MB |
| Requires iOS | 15.6 | **13.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Hamdouchi Interactive, LLC](https://appshunter.io/developer/306208255) | [Pulsar Innovations LLC](https://appshunter.io/developer/1689227458) |

## What reviewers say

### Flash+

[App page](https://appshunter.io/ios/app/flash-plus/id1503417037)

This app offers a modern take on flashcards for studying and memorizing facts across various subjects. Users can swipe to indicate knowledge and track progress, making learning engaging for individuals and families.

**Highlights:** Swipe-based learning, Progress tracking, Multiple subject bundles, Family trivia mode, Score feedback, Challenge friends

**Features:** Vision Pro support

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Newbie | $0.99 | one-time |
| Novice | $1.99 | one-time |
| Rookie | $2.99 | one-time |
| Beginner | $3.99 | one-time |
| Talented | $4.99 | one-time |
| Skilled | $5.99 | one-time |
| Seasoned | $6.99 | one-time |
| Proficient | $7.99 | one-time |
| Advanced | $8.99 | one-time |
| Expert | $9.99 | one-time |


### TimeCrystal

[App page](https://appshunter.io/ios/app/timecrystal-ai-time-machine/id6449464951)

Explore history through AI-powered virtual time travel. Engage with historical figures, uncover major events, and learn about daily life, art, culture, and technology from different eras. Your journey through time is personalized and saved for easy access.

**Highlights:** AI-powered time travel, Explore historical events, Engage with historical figures, Discover art and culture, Learn about daily life, Track technological advancements, Personalized journey history

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

**In-app purchases:** none


## Frequently asked questions

### Is Flash+ free?

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

### Is TimeCrystal free?

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

### Which has better reviews, Flash+ or TimeCrystal?

Flash+ is rated higher. Flash+ averages 5.0 out of 5 from 9 ratings, while TimeCrystal averages 4.1 from 9 ratings.

### Do Flash+ or TimeCrystal have ads?

Neither Flash+ nor TimeCrystal shows ads.

### Which is updated more often, Flash+ or TimeCrystal?

Flash+ ships an update every 2 days, and TimeCrystal fortnightly. Most recently, Flash+ was updated on October 25, 2026 and TimeCrystal on October 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.*