Graphos vs Collatz Explorer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Graphos
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With this application we can visualise the graph of any mathematical function. We write the function in field f (x) following the rules presented in the instructions. We establish the definition area. For a correct visualisation we establish the scale, through the horizontal and vertical slider. Valid functions are presented in "how to use" Note that we must use argument x.
Collatz Explorer
Explore mathematical sequences with this app. It calculates the standard Collatz sequence for any number you enter and can also display sequences from an alternative 3x-1 function.
- Calculate Collatz sequences
- Calculate 3x-1 function sequences
- Input any number
- Visualize sequences
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A fun app that is capable of showing you any collatz sequence for a number that you input. Also capable of showing you any sequence from an alternate 3x-1 function for any number you input.
Screenshots
Verdict
The clearest difference is in-app purchases: Collatz Explorer at none against Graphos's 1. Collatz Explorer also leads on update cadence (monthly vs every 18 months). Graphos's advantage is device support (3 vs 1) and iOS requirement (15.0 vs 18.6). On price and ads there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Graphos sells 1 one-off in-app purchase. Collatz Explorer asks for nothing beyond the download.
Graphos ships an update every 18 months, Collatz Explorer monthly. The most recent releases landed on October 5, 2026 and September 27, 2026 respectively.
| Parameter | Graphos | Collatz Explorer |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.6 (7 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 7 — better |
| Update frequency | Every 18 months | Monthly — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | — | Free |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.0 — better | 18.6 |
| Further details — not scored | ||
| Size | 5 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Bodnar Marin | Berk Sucu |
In-app purchases
Graphos
- Graphos full version$9.99
Collatz Explorer
No in-app purchases
Questions
Is Graphos free?
Is Collatz Explorer free?
Do Graphos or Collatz Explorer have ads?
Which is updated more often, Graphos or Collatz Explorer?
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