Federgraph vs Image Assistant
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Federgraph
Read full descriptionHide full description
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.
Image Assistant
This app calculates and graphically illustrates the localization curves for various stereo microphone setups. It also offers an auralization feature to hear the sound produced by the selected configuration.
- Calculates localization curves
- Supports 2- and 3-channel stereo microphones
- Graphic illustration of curves
- Auralization of microphone configurations
- Playback of sound
Read full descriptionHide full description
The Image Assistant is an App that calculates the localization curves of arbitrary 2- and 3-channel stereo microphone configurations. Additionally to the graphic illustration a simple auralisation of the selected microphone configuration can be played back.
Screenshots
Verdict
The clearest difference is update cadence: Federgraph at every 15 months against Image Assistant's every 37 months. Image Assistant's advantage is iOS requirement (6.0 vs 15.0). 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, Image Assistant every 37 months. The most recent releases landed on October 26, 2026 and October 8, 2026 respectively.
| Parameter | Federgraph | Image Assistant |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 1 — better |
| Update frequency | Every 15 months — better | Every 37 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 6.0 — better |
| Further details — not scored | ||
| Size | 29 MB | 10 MB |
| Age rating | 4+ | 4+ |
| Developer | Gustav Schubert | Schalltechnik Dr.-Ing. Schoeps GmbH |
In-app purchases
Federgraph
No in-app purchases
Image Assistant
No in-app purchases
Questions
Is Federgraph free?
Is Image Assistant free?
Do Federgraph or Image Assistant have ads?
Which is updated more often, Federgraph or Image Assistant?
Other comparisons
