ISAvee vs Graph Maker
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ISAvee
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This application converts the various aerodynamic speeds from one to the other (calibrated, equivalent, true and Mach number) and calculates the International Standard Atmosphere (ISA) properties as a function of pressure altitude and deviation temperature in degree Centigrade. This is a very simple utilitarian engineering application I developed for myself that I'm making available, no eye candy here.
Graph Maker
Easily generate various types of charts, including line, bar, pie, and combo graphs, from simple data input. The app offers flexibility in data formatting and label display for clear visualization.
- Line, bar, and pie chart creation
- Combo graph with lines and bars
- Flexible data input and label formatting
- Automatic percentage calculation for pie charts
- Instant graph generation
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This app quickly creates graphs from simple input. Works with line, bar, and pie charts. We've also implemented a new combo chart with lines and bars. Combining a monthly bar chart with a cumulative line chart for each month makes the information much easier to understand. It's a bit quirky as it instantly draws graphs from input data. Please check the summary below. ・Data Values No strict input limits, but for a neat layout, keep characters short. Adjust units to shorten characters (e.g., [Unit: 1,000 yen]). ・Data Labels: Adjusted for the longest notation '20231101.' To minimize data label characters, use '23/11/01' or '11/1' as labels, and include '2023-' in the title. Labels with 3 or fewer characters display horizontally. ・Pie Charts If input totals 100, it's % distribution on the chart. If not, it auto-calculates percentages. Charts created with this app can be used freely for both commercial and non-commercial purposes.
Screenshots
Verdict
The clearest difference is in-app purchases: ISAvee at none against Graph Maker's 1. ISAvee also leads on ads (none vs shown) and iOS requirement (11.0 vs 15.5). On price 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. Graph Maker sells 1 in-app purchase, starting at $1.99 per month. ISAvee asks for nothing beyond the download.
| Parameter | ISAvee | Graph Maker |
|---|---|---|
| Price | Free | Free |
| Rating | — | 3.7 (15 ratings) — better |
| Positive reviews | — | 30.8% of reviews |
| Number of ratings | — | 15 — better |
| Update frequency | — | Every 2 weeks |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 11.0 — better | 15.5 |
| Further details — not scored | ||
| Size | 48 MB | 27 MB |
| Age rating | 4+ | 4+ |
| Developer | Pierre Bertrand | Motoki Takahashi |
In-app purchases
ISAvee
No in-app purchases
Graph Maker
- Pro Plan - Monthly1 Month trial$1.991 Month









