Tracker vs Ruler & Digital Caliper
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Tracker
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Rastreie, controle e monitore seu veículo 24 horas por dia, através do Tracker Acre Características: - Visualize de forma rápida e prática, a posição do seu veículo em tempo real no mapa. - Visualize o histórico de Localização de seu Veículo . - Bloqueie e Desbloqueia seu Veículo. Entre outras funcionalidades que apenas o Tracker Acre, possui como: Cerca Virtual, Alerta de Movimento, Notificação de Excesso de Velocidade, Notificação de ignição Ligada/Desligada.... entre outros.
Ruler & Digital Caliper
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Measure small, flat objects on your iPhone with an edge ruler and two-jaw digital caliper. On supported iPhone models, start with an approximate device-based screen scale. For a physical check, align a ruler with a 20 mm reference on screen. Lifetime access requires a separate one-time purchase and adds repeated measurements and a session workspace: view a result, use it as a reference, and compare the next object. Results and references remain in the current session. TWO FOCUSED TOOLS • Edge ruler with a movable origin and end marker • Digital caliper with two independently adjustable jaws • Magnified contact guide for placing markers at object edges • Fine-adjust controls for small position changes • Reset markers without resetting calibration FOUR UNIT FORMATS • Millimeters • Centimeters • Decimal inches • Fractional inches, rounded to the nearest 1/64 BUILT FOR REAL-WORLD ALIGNMENT Keep a small object flat against the usable screen edge, move the contact points to its edges, and read the result. Switch tools and units as you work. Use portrait or either landscape orientation, and lock orientation while aligning an object. PRIVATE BY DESIGN Measurement values and marker positions are calculated on your iPhone. There is no account, advertising, camera access, or measurement server. Limited privacy-conscious product analytics never include measurement values, marker positions, or calibration data. Calibration and preferences are stored locally. A PRACTICAL SCREEN TOOL Results depend on calibration, alignment, display settings, screen protectors or cases, and the object being measured. Recalibrate after changing iPhone or Display Zoom. For important measurements, compare the result with a known physical reference. Ruler & Digital Caliper is not a certified measuring instrument. Support: https://rulercaliper.app/support Privacy Policy: https://rulercaliper.app/privacy Terms of Use: https://rulercaliper.app/terms
Screenshots
Verdict
The clearest difference is in-app purchases: Tracker at none against Ruler & Digital Caliper's 1. Tracker also leads on device support (3 vs 1) and iOS requirement (15.6 vs 17.0). On price and ads 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. Ruler & Digital Caliper sells 1 one-off in-app purchase. Tracker asks for nothing beyond the download.
| Parameter | Tracker | Ruler & Digital Caliper |
|---|---|---|
| Price | Free | Free |
| Update frequency | — | Every 3 days |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.6 — better | 17.0 |
| Further details — not scored | ||
| Size | 245 MB | 5 MB |
| Age rating | 17+ | 4+ |
| Developer | aguinaldo sousa de moraes | Yurii Koshkin |
In-app purchases
Tracker
No in-app purchases
Ruler & Digital Caliper
- Lifetime Access$9.99
Questions
Is Tracker free?
Is Ruler & Digital Caliper free?
Do Tracker or Ruler & Digital Caliper have ads?
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