IMPACTUS vs Geometry Calc+Shapes
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
IMPACTUS
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IMPACTUS- Behavior Management to Excel Your Organization
Geometry Calc+Shapes
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Quickly calculate areas, volumes, and angles of geometric shapes with a simple yet precise geometry calculator. Supports a wide range of shapes including triangles, circles, trapezoids, and 3D solids such as spheres, cylinders, and cones. Ideal for students, designers, and engineers in any field. ---------- 【Main Features】 ・Supports various shapes: triangles, circles, regular polygons, and 3D solids ・Automatically solves consistent values when multiple conditions are entered (supports multi-constraint calculation) ・Adjustable decimal precision and angle units (degrees / DMS) ・Save and share input values easily ・Export calculated results as images ---------- 【Full Access Plan】 The free version includes basic shapes (right triangle and circle). Purchasing the Full Access Plan unlocks all shapes, removes ads, and allows you to save without watching ads. You can also customize decimal precision freely. ---------- With advanced “multi-constraint” solving and automatic updates for interdependent sides and angles, the internal high-precision math engine ensures reliable results. Perfect for those who need accurate, efficient geometry calculations for study, design, or engineering work. --- Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is in-app purchases: IMPACTUS at none against Geometry Calc+Shapes's 1. IMPACTUS also leads on update cadence (every 6 weeks vs every 7 months). On price, ads, device support and iOS requirement 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. Geometry Calc+Shapes sells 1 in-app purchase, starting at $7.99 per month. IMPACTUS asks for nothing beyond the download.
IMPACTUS ships an update every 6 weeks, Geometry Calc+Shapes every 7 months. The most recent releases landed on October 20, 2026 and October 12, 2026 respectively.
| Parameter | IMPACTUS | Geometry Calc+Shapes |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 6 weeks — better | Every 7 months |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Devices | iPhone | iPhone, iPad — better |
| Requires iOS | 17.6 — better | 18.4 |
| Further details — not scored | ||
| Size | 3 MB | 5 MB |
| Age rating | 4+ | +4 |
| Developer | Fidelity Solution | Jun Yamabe |
In-app purchases
IMPACTUS
No in-app purchases
Geometry Calc+Shapes
- Monthly Subscription$7.991 Month









