ShapeInfo Plus vs Lectio
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ShapeInfo Plus
This app calculates lengths, angles, and areas for various geometric shapes. It supports a wide range of 2D and 3D shapes, making it a handy tool for engineers and students.
- Calculate lengths, angles, and area
- Calculate volume for 3D shapes
- Supports various 2D and 3D shapes
- User-friendly input for calculations
- Immediate calculation results
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Feature The ShapeInfo is useful application for calculating shape lengths, angles and area. You can get some calculated lengths and angles of the shape from choosing and entering values in the boxes upon the orange points. How to use 1. Choosing shape from the list. 2. Enter the value to the box upon the orange points. You can change the formation of the orange points by "NEXT" button (orange color) or tapping orange/gray point near the box that you are going to enter the value. 3. You can get calculated values of the shape, immediately after entering values. Applications - For the software developer, the mechanical engineer, the dynamics engineer and the surveying engineer. - Study mathematics for high school students. Functions - Calculate lengths, angles and the area for the right triangle, the triangle, the sector, the circle and ellipse. - Calculate volume for the triangular pyramid, the triangular prism, the circular cone, circular cylinder and the sphere. Shapes - Right triangle - Triangle - Sector - Circle - Ellipse - Triangular pyramid - Triangular prism - Circular cone - Circular cylinder - Oblique cutting circular cylinder - Sphere Disclaimer Appsys does not accept responsibility for any loss, which may arise from reliance on the software or materials published on this site.
Lectio
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A photo saves the page. Lectio helps you keep working with what's on it. Bring handouts, paper documents and images into a library where you can read, compare and reuse the content. Start with the page in front of you. Capture a handout, note or document, or import existing images and supported files. Choose a recognition engine for the material and extract its text. For tables, formulas and complex layouts, keep the original image close at hand to check the result. Read a page at a time. Move through the document and return to its original image when you need to verify a detail. Generate a translation for foreign-language material and read it alongside the source, keeping your understanding connected to the original. Build something from the collection. Group material for a course, a trip or a work topic into projects. Return to your library, check processing progress and export useful results for notes, reports or the next piece of work. Choose the right tool for each document. Use the in-app cloud engine or configure a supported provider's API key. Recognition and layout results depend on image quality, language and the selected engine. Cloud processing sends the required content to the relevant service. Purchases and usage Lifetime is a separate one-time unlock. Boundless Go, Plus and Pro are monthly or yearly auto-renewing plans with shared app benefits and cloud usage. Boundless Points packs add usage credit. Different features may require different entitlements; check the specific plan, price and terms in the app before purchasing. Manage or cancel subscriptions in your Apple Account subscription settings. Support: support@kaichenera.com Privacy Policy: https://yueshi.kaichenera.com/privacy/ Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is price: Lectio at Free against ShapeInfo Plus's $0.99. Lectio also leads on update cadence (weekly vs every 6 months). ShapeInfo Plus's advantage is in-app purchases (none vs 10) and ads (none vs shown). On 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
Lectio is free to download; ShapeInfo Plus costs $0.99 up front. Lectio sells 10 in-app purchases, starting at $3.99 per month. ShapeInfo Plus asks for nothing beyond the download.
ShapeInfo Plus ships an update every 6 months, Lectio weekly. Both last shipped on October 24, 2026.
| Parameter | ShapeInfo Plus | Lectio |
|---|---|---|
| Price | $0.99 | Free — better |
| Rating | 4.6 (31 ratings) — better | — |
| Positive reviews | 65.5% of reviews | — |
| Number of ratings | 31 — better | — |
| Update frequency | Every 6 months | Weekly — better |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Paid | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 13.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 11 MB | 97 MB |
| Age rating | 4+ | 4+ |
| Developer | Noriyasu Kutsuzawa | Shanghai Kaichen Jiyuan Technology Co., Ltd. |
In-app purchases
ShapeInfo Plus
No in-app purchases
Lectio
- Boundless Suite Go Monthly$3.991 Month
- Boundless Suite Plus Monthly$9.991 Month
- Boundless Suite Pro Monthly$24.991 Month
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- Boundless Suite Go Yearly$39.991 Year
- Boundless Suite Plus Yearly$99.991 Year
- Boundless Suite Pro Yearly$249.991 Year
- Boundless Points 250$1.49
- Boundless Points 1000$4.99
- Lifetime Membership$6.99
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- Boundless Points 3000$13.99









