Federgraph vs Custom Thoughts
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Federgraph
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Federgraph is a function plotter app to visualize a special built in function z = f(x, y) in 3D. The physical model behind the app is a system of springs. The built in function produces a variety of colorful pictures, some of which appear to have a face. Changing the parameters of the physical model will trigger a recalculation of the image.
Custom Thoughts
This app provides a personalized space for self-expression and emotional exploration through journaling. It offers extensive customization options and a unique approach to personal reflection.
- Personalized journaling
- Emotional exploration
- Customization options
- Self-expression tools
- Playful secrets feature
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Unlock the power of self-expression with Custom Thoughts, your personal journaling haven. Dive into a world where emotions take center stage, customization knows no bounds, and a hint of playful secrets awaits. Embrace the YOU in every entry.
Screenshots
Verdict
The clearest difference is update cadence: Custom Thoughts at every 3 days against Federgraph's every 15 months. On price, ads, in-app purchases and device support 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. Neither carries in-app purchases, so what you see is what you pay.
Federgraph ships an update every 15 months, Custom Thoughts every 3 days. The most recent releases landed on September 26, 2026 and October 3, 2026 respectively.
| Parameter | Federgraph | Custom Thoughts |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.4 (7 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 7 — better |
| Update frequency | Every 15 months | Every 3 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod, Apple Watch — better |
| Requires iOS | 15.0 | 15.0 |
| Further details — not scored | ||
| Size | 29 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | Gustav Schubert | Caleb Greer |
In-app purchases
Federgraph
No in-app purchases
Custom Thoughts
No in-app purchases
Questions
Is Federgraph free?
Is Custom Thoughts free?
Do Federgraph or Custom Thoughts have ads?
Which is updated more often, Federgraph or Custom Thoughts?
Other comparisons
