# Primes + vs Tercet Puzzle

The clearest difference is price: Tercet Puzzle at Free against Primes +'s $0.99. Tercet Puzzle also leads on update cadence (every 2 days vs every 38 months) and iOS requirement (15.0 vs 18.0). On ads, in-app purchases and device support there is nothing between them.

Tercet Puzzle is free to download; Primes + costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Primes + ships an update every 38 months, Tercet Puzzle every 2 days. The most recent releases landed on October 9, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | Primes + | Tercet Puzzle |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 38 months | **Every 2 days** |
| Monetization | — | Free with in-app purchases |
| Size | 11 MB | 19 MB |
| Requires iOS | 18.0 | **15.0** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Gianluca Natalini](https://appshunter.io/developer/348380792) | [Ludovic Debono](https://appshunter.io/developer/6808591538) |

## What reviewers say

### Primes +

[App page](https://appshunter.io/ios/app/primes-plus/id859086296)

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

**In-app purchases:** none


### Tercet Puzzle

[App page](https://appshunter.io/ios/app/tercet-puzzle/id6808591536)

A numbers puzzle game where you link cells to clear a grid by making sums. Offers two distinct play modes and adjustable grid sizes for varying challenges. Enjoy an offline experience with no ads or trackers.

**Highlights:** Link neighboring cells to form sums, Clear the grid by making digits equal the sum of others, Two play modes: Snake and Trio, Adjustable grid sizes (9x6, 9x9, 9x12), Lifebuoy feature to rewind mistakes, Offline play, no ads, no trackers, Supports ten languages

**In-app purchases:** none


## Frequently asked questions

### Is Primes + free?

Primes + costs $0.99, with no in-app purchases.

### Is Tercet Puzzle free?

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

### Do Primes + or Tercet Puzzle have ads?

Neither Primes + nor Tercet Puzzle shows ads.

### Which is updated more often, Primes + or Tercet Puzzle?

Primes + ships an update every 38 months, and Tercet Puzzle every 2 days. Most recently, Primes + was updated on October 9, 2026 and Tercet Puzzle on October 16, 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.*