Protractor Edge vs SK iFaster
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Protractor Edge
This utility app functions as a precise digital protractor for measuring angles on your device. It offers a smart instrument for accurate angle measurement, supporting iPhone and iPad. The app is free to download and use.
- Precise angle measurement
- Smart instrument
- Digital protractor
- Supports iPhone and iPad
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Protractor - smart instrument to measure angles. Support: https://k1er.github.io/
SK iFaster
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SkIfaster是专业的新能源汽车充电服务平台，覆盖30万+充电桩。实时查看空闲桩、价格对比、导航到站，支持即插即充和优惠支付，让充电比加油更方便！核心功能智能找桩地图实时显示附近充电站，筛选快充/慢充、价格、运营商 内置导航预估到达时间，显示排队情况 省钱充电比价功能：同一站点多运营商价格对比 低谷期预约充电，电费低至0.3元/度 快捷支付：一键付款，享额外折扣 会员权益新用户注册即送充电券 VIP会员享充电服务费5折、专属客服 充电进度实时推送，充满自动提醒用户场景长途出行：高速服务区充电桩实时监控 日常通勤：预约小区周边低谷电价时段 商务用车：企业账户多车统一管理安全承诺数据加密传输，严格遵循GDPR隐私政策，绝不共享用户位置信息。
Screenshots
Verdict
The clearest difference is in-app purchases: SK iFaster at none against Protractor Edge's 2. SK iFaster also leads on ads (none vs shown). Protractor Edge's advantage is iOS requirement (13.0 vs 15.0). On price, update cadence 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. Protractor Edge sells 2 one-off in-app purchases. SK iFaster asks for nothing beyond the download.
Protractor Edge ships an update every 6 weeks, SK iFaster every 3 weeks. The most recent releases landed on October 7, 2026 and October 24, 2026 respectively.
| Parameter | Protractor Edge | SK iFaster |
|---|---|---|
| Price | Free | Free |
| Rating | 4.0 (2 ratings) — better | — |
| Positive reviews | 66.7% of reviews | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 6 weeks | Every 3 weeks — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 17 MB | 34 MB |
| Age rating | +4 | 9+ |
| Developer | 向阳 杨 | Zhejiang Power Import&Export Co,.Ltd |
In-app purchases
Protractor Edge
- Support for a cup of coffee$1.99
- Ads-free experience$1.99
SK iFaster
No in-app purchases
Questions
Is Protractor Edge free?
Is SK iFaster free?
Do Protractor Edge or SK iFaster have ads?
Which is updated more often, Protractor Edge or SK iFaster?
Other comparisons
