# StelaClock vs Cliff Timer

The clearest difference is price: Cliff Timer at Free against StelaClock's $3.99. Cliff Timer also leads on update cadence (every 5 months vs every 29 months) and rating (4.9 vs 4.6). StelaClock's advantage is in-app purchases (none vs 3). On ratings volume, ads and device support there is nothing between them.

Cliff Timer is free to download; StelaClock costs $3.99 up front. Cliff Timer sells 3 in-app purchases, starting at $0.99 per month. StelaClock asks for nothing beyond the download.

Cliff Timer holds the better App Store score, 4.9 against 4.6. Both are backed by a comparable volume of ratings — 5 and 10 respectively. Written reviews point the same way: 86% of StelaClock's written reviews are positive against 100% of Cliff Timer's.

StelaClock ships an update every 29 months, Cliff Timer every 5 months. The most recent releases landed on September 8, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | StelaClock | Cliff Timer |
| --- | --- | --- |
| Price | $3.99 | **Free** |
| Rating | [4.6 (5 ratings)](https://appshunter.io/ios/app/stelaclock/id528908559/reviews) | **[4.9 (10 ratings)](https://appshunter.io/ios/app/cliff-timer-height-measurer/id6736556211/reviews)** |
| Number of ratings | 5 | **10** |
| Positive reviews | 85.7% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 29 months | **Every 5 months** |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 7 MB | 16 MB |
| Requires iOS | 26.0 | **17.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Gary Saggu](https://appshunter.io/developer/465733546) | [Frank Schipani](https://appshunter.io/developer/1772378774) |

## What reviewers say

### StelaClock

[App page](https://appshunter.io/ios/app/stelaclock/id528908559)

Discover the Mayan calendar and number system with this educational clock app. It displays the current time and date using Mayan glyphs and a Base 20 notation, offering a unique way to experience ancient Maya culture.

**Highlights:** Mayan calendar display, Mayan number system, Vigesimal (Base 20) notation, Sophisticated calendar converter, Mayan glyph numerals, Daily use clock

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

**In-app purchases:** none


### Cliff Timer

[App page](https://appshunter.io/ios/app/cliff-timer-height-measurer/id6736556211)

Calculate the height of lightning strikes using a simple stopwatch and physics formulas. Measure the time between seeing lightning and hearing thunder to determine distance and height.

**Highlights:** Lightning height calculation, Lightning distance calculation, Uses physics formulas, Simple stopwatch interface, Real-time results

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $0.99 | per month |
| Yearly | $5.99 | per year |
| Lightning Distance Access | $1.99 | one-time |


## Frequently asked questions

### Is StelaClock free?

StelaClock costs $3.99, with no in-app purchases.

### Is Cliff Timer free?

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

### Which has better reviews, StelaClock or Cliff Timer?

Cliff Timer is rated higher. StelaClock averages 4.6 out of 5 from 5 ratings, while Cliff Timer averages 4.9 from 10 ratings.

### Do StelaClock or Cliff Timer have ads?

Neither StelaClock nor Cliff Timer shows ads.

### Which is updated more often, StelaClock or Cliff Timer?

StelaClock ships an update every 29 months, and Cliff Timer every 5 months. Most recently, StelaClock was updated on September 8, 2026 and Cliff Timer on September 14, 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.*