# GIA vs Theo's Timer

The clearest difference is price: GIA at Free against Theo's Timer's $2.99. GIA also leads on ratings volume (450 vs 1) and iOS requirement (15.0 vs 18.0). Theo's Timer's advantage is rating (5.0 vs 4.8). On ads, in-app purchases and device support there is nothing between them.

GIA is free to download; Theo's Timer costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Theo's Timer holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: GIA has 450 ratings behind it against 1, so its average is the more settled of the two.

## The numbers

| Metric | GIA | Theo's Timer |
| --- | --- | --- |
| Price | **Free** | $2.99 |
| Rating | [4.8 (450 ratings)](https://appshunter.io/ios/app/gia/id1623642988/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/theos-timer/id6758415177/reviews)** |
| Number of ratings | **450** | 1 |
| Positive reviews | 88.9% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | — |
| Monetization | **Ad-supported** | Paid |
| Size | 152 MB | 3 MB |
| Requires iOS | **15.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [GIA](https://appshunter.io/developer/469023198) | [Isaac Smith](https://appshunter.io/developer/1832639715) |

## What reviewers say

### GIA

[App page](https://appshunter.io/ios/app/gia/id1623642988)

This app helps shoppers and sellers understand diamond quality using interactive tools and educational content. It allows users to save and share diamond reports, find local retailers, and even match diamonds to their reports.

**Highlights:** Interactive 4Cs tools, Diamond buying tips and articles, Save and share diamond reports, GIA retailer lookup, Point-of-sale tools for sellers, Diamond inscription matching

**In-app purchases:** none


### Theo's Timer

[App page](https://appshunter.io/ios/app/theos-timer/id6758415177)

This app offers a visual roadmap to help children learn patience, manage transitions, and develop time management skills. It's ideal for parents and therapists supporting children with autism, ADHD, or those needing extra visual aids.

**Highlights:** Customizable timer display, Add custom images, Adjustable time and display, Additional cues and feedback, Data collection, Record notes

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is GIA free?

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

### Is Theo's Timer free?

Theo's Timer costs $2.99, with no in-app purchases.

### Which has better reviews, GIA or Theo's Timer?

Theo's Timer is rated higher. GIA averages 4.8 out of 5 from 450 ratings, while Theo's Timer averages 5.0 from 1 ratings.

### Do GIA or Theo's Timer have ads?

Neither GIA nor Theo's Timer shows ads.

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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.*