# GO vs Rift Valley Timer

The clearest difference is rating: Rift Valley Timer at 5.0 against GO's 4.7. Rift Valley Timer also leads on update cadence (fortnightly vs every 6 weeks) and price ($1.99 vs $4.99). GO's advantage is ratings volume (23 vs 3). On review sentiment, ads, in-app purchases and monetization model there is nothing between them.

GO costs $4.99 and Rift Valley Timer $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Rift Valley Timer holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: GO has 23 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 95% of GO's written reviews are positive against 100% of Rift Valley Timer's.

GO ships an update every 6 weeks, Rift Valley Timer fortnightly. The most recent releases landed on October 29, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | GO | Rift Valley Timer |
| --- | --- | --- |
| Price | $4.99 | **$1.99** |
| Rating | [4.7 (23 ratings)](https://appshunter.io/ios/app/go-25-scirpn/id408249517/reviews) | **[5.0 (3 ratings)](https://appshunter.io/ios/app/rift-valley-timer/id1448933389/reviews)** |
| Number of ratings | **23** | 3 |
| Positive reviews | 95.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Fortnightly** |
| Monetization | Paid | Paid |
| Size | 18 MB | 11 MB |
| Requires iOS | **16.0** | 17.0 |
| Devices | **iPhone, iPad, Mac, Apple TV** | iPhone, iPad, Mac |
| Age rating | 4+ | 4+ |
| Developer | [Steve Lidie](https://appshunter.io/developer/1869780159) | [Rift Valley Software, Inc.](https://appshunter.io/developer/1448933102) |

## What reviewers say

### GO

[App page](https://appshunter.io/ios/app/go-25-scirpn/id408249517)

This app faithfully recreates the HP-25C Programmable Scientific Calculator from 1976. It offers RPN input, a 10-digit LED display, and extensive mathematical functions. Users can program it with up to 99 steps and share programs via various methods.

**Highlights:** RPN input, 10-digit LED display, Four stack registers, Ten storage registers, Extensive math functions, 99-step programmability, Program import/export

**Features:** Vision Pro support

**In-app purchases:** none


### Rift Valley Timer

[App page](https://appshunter.io/ios/app/rift-valley-timer/id1448933389)

This app provides a distraction-free countdown timer experience. Create and manage groups of sequential timers with customizable alerts and visual cues. Choose from multiple display styles for optimal visibility.

**Highlights:** Sequential timer groups, Customizable sounds and vibration, Flexible timer editing, Multiple display styles, Gesture and toolbar controls, Visual alerts with color cues

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is GO free?

GO costs $4.99, with no in-app purchases.

### Is Rift Valley Timer free?

Rift Valley Timer costs $1.99, with no in-app purchases.

### Which has better reviews, GO or Rift Valley Timer?

Rift Valley Timer is rated higher. GO averages 4.7 out of 5 from 23 ratings, while Rift Valley Timer averages 5.0 from 3 ratings.

### Do GO or Rift Valley Timer have ads?

Neither GO nor Rift Valley Timer shows ads.

### Which is updated more often, GO or Rift Valley Timer?

GO ships an update every 6 weeks, and Rift Valley Timer fortnightly. Most recently, GO was updated on October 29, 2026 and Rift Valley Timer on October 25, 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.*