Arc Calculations vs IR
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Arc Calculations
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This app is used to Calculate Arc Length, Arc Angle, Arc Radius, Arc Cord, Arc Depth, Arc Tangent, Arc Segment Area, Arc Sector Area etc. App features: 1. No Internet Requirement. 2. No Irritating Ads. 3. Fabrication Friendly. 4. Higher Performance. This Tool is useful in fabrication Filed. Arc Length Calculator - In this app This Tool calculate arc length by using arc radius and arc angle. Arc Radius Calculator - This tool is calculate arc radius by using arc angle and arc length. Arc Angle calculator - This Tool is calculate arc angle by using arc radius and arc length. Arc Depth Calculator - This tool Calculate Arc Depth by using radius and angle Arc Tangent Height Calculator - This tool Calculate Arc Tangent Height Calculator by using Arc Radius and Arc Angle. Arc Sector Area Calculator - This Tool Calculate Arc Sector area by using arc Angle and arc Radius Arc Segment Area Calculator - This Tool calculate Arc Segment Area by Using Arc Angle and Radius In this app Arc Angle and Arc Radius is used as input. angle is used in Degree for Calculation. This app is Very useful in fabrication Field. it required to calculate all arc calculation when we are doing Marking or we had required to calculate dimension while studying Engineering Drawings. It is very helpful in Process Equipment fabrication, Piping, Engineering Drawings, Pressure Vessels fabrication, Heat Ex-changer Fabrication, Machining Process. Keywords - Arc, Circle, Geometry, Fabrication, Cord length, PCD, Degree, Radians, Engineering, Drawing, Area, Arc Radius, Radius, Angle, Pressure Vessel
IR
This app connects to a handheld thermal imaging scope to capture detailed images in low visibility or complete darkness. Its robust design is suitable for outdoor use in various professional and recreational scenarios.
- Connects to handheld thermal imaging scope
- Captures rich image information in darkness
- Robust design for outdoor use
- Suitable for patrol, law enforcement, and search and rescue
- Supports hiking and outdoor exploration
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IR-TRACKER V 可连接一款手持观瞄镜，采用红外热成像成像器件、专业显示目镜，手持操作，在能见度低或完全黑暗的环境下获取丰富的图像信息。设备设计坚固耐用，能够满足户外使用需求，可广泛应用于巡逻、执法、搜救、缉毒缉私、犯人追捕、徒步旅游(户外探索)等场景
Screenshots
Verdict
The clearest difference is price: IR at Free against Arc Calculations's $2.99. IR also leads on update cadence (every 3 months vs every 56 months) and iOS requirement (11 vs 16.1). On 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
IR is free to download; Arc Calculations costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Arc Calculations ships an update every 56 months, IR every 3 months. Both last shipped on November 3, 2026.
| Parameter | Arc Calculations | IR |
|---|---|---|
| Price | $2.99 | Free — better |
| Rating | — | 1.0 (3 ratings) — better |
| Number of ratings | — | 3 — better |
| Update frequency | Every 56 months | Every 3 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 16.1 | 11 — better |
| Further details — not scored | ||
| Size | 1 MB | 73 MB |
| Age rating | 4+ | 4+ |
| Developer | Imran Pinjara | zhejiang dali technology co.,ltd |
In-app purchases
Arc Calculations
No in-app purchases
IR
No in-app purchases
