Comparison

Compass AR vs DataFastView

Price, ratings, monetisation and update history for both apps, side by side β€” with what reviewers say about each.

Head to head
About

Compass AR

Features
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CompassPlus is an instrument. Direction, altitude, speed β€” one screen each, in numbers big enough to read while you walk. COMPASS Β· A large heading and a dial. True North or Magnetic North, switched any time. Β· The Sun and Moon are marked on the dial, with sunrise, sunset and elevation. Β· Scrub time (Pro) by year, month, day, hour or minute and see where the Sun sits at that moment. When you are not on Now, the app says so, and one tap brings you back. Β· A coordinate card: decimal degrees or DMS, tap to copy, with the place name. Β· A level, so you can tell whether the phone is flat. Β· When the magnetic field is disturbed it tells you, and walks you through the figure-eight calibration. ALTITUDE Β· One big number, colored by how high you are. Β· GPS + Barometer fused, GPS alone, or automatic β€” your call. Β· Meters or feet, with the vertical accuracy beside it. Β· Pressure, temperature and wind, while you are here. SPEED Β· Live speed and acceleration, from GPS speed, the motion sensors, or both fused. Β· It works out whether you are still, walking, running, cycling or driving, and tells you how confident it is. Β· Tap once to record a stretch (Pro). The average is integrated over time rather than averaged across readings, so the minutes spent parked do not drag it down. Max speed and duration are kept with it. FIND SUN / MOON IN AR (PRO) Β· Hold up the phone and the Sun and Moon are drawn on the real sky. Β· It draws the whole day's arc: where it rose, the path it takes, where it sets β€” including the stretch below the horizon. Β· The Moon's path drifts a little each day. The gap in the arc says by how much. Β· When the target is off screen, the edge points you toward it. Β· Sunrise, sunset, moonrise, moonset and the golden hour sit on the arc. Β· Drag to move the reticle onto the real thing β€” slowly to fine-tune, quickly to move far. Exposure stays automatic, and a lock is always one tap from released. SETTINGS Which screen opens first, north reference, altitude source and unit, coordinate format, speed unit, whether to show accuracy. Set it once. PRICE Free to download. Direction, altitude and live speed β€” with weather, the level and coordinates β€” stay free. The AR finder, time scrubbing, widgets and speed recording make up CompassPlus Pro: a one-time purchase, not a subscription, with future updates included and Family Sharing on. No ads. ABOUT LOCATION Location and motion data are used on the device to work out direction, altitude and speed. Nothing is uploaded to my server β€” I don't have one. Place names go through the system geocoder, and the weather reading comes from Apple Weather (WeatherKit). Those are the only two places your location leaves the phone; both use coordinates alone, and both go only to Apple. REQUIREMENTS iOS 26 or later, iPhone only. Barometer-fused altitude needs a device with a barometer. AR needs an ARKit-capable device and camera access.

About

DataFastView

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Your iPhone is measuring itself all day. DataFastView is where you get to see it. Live Wi-Fi quality, battery, CPU, memory, storage and the weather β€” in the Dynamic Island, on the Home Screen, in Control Center, and on one screen inside the app. Everything is measured on the device. There is no account, no tracking, and nothing to sign up for. WI-FI QUALITY, NOT SIGNAL BARS A full-bar connection with 300 ms of jitter is a bad connection, and the bars will never tell you. DataFastView scores your link from 0 to 100 using four things it measures directly: β€’ Round-trip time to your own router β€’ Round-trip time to the internet β€’ Jitter β€” how much that time varies β€’ Packet loss Live upload and download rates sit next to the score, and a download-speed test runs only when you tap the button. Tap "How this score is measured" to see exactly how the four are weighted. Nothing is hidden behind a marketing number. ENERGY AND SYSTEM Battery level and charging state, Low Power Mode, and thermal state β€” Normal, Elevated, High or Critical. CPU on a fixed 0-100% scale, so a phone idling at 3% does not draw the same mountain as one at 100%. Memory split into active, wired, compressed and free. Free storage and time since the last restart. There is no battery temperature, health or cycle count, because iOS publishes no public API for any of them. Any app showing you those is estimating. This one tells you what it actually knows. THE DYNAMIC ISLAND Choose one metric for the left side and one for the right, from CPU, memory in MB or percent, storage in GB or percent, uptime, battery, thermal state, network rates, Wi-Fi quality, or a clock that keeps ticking on its own. Every option shows its live value while you pick, so you are choosing from real numbers rather than names. WIDGETS Actions (medium) β€” up to ten launch buttons of your own, in two rows of five, each with a symbol or a real app icon and a colour you choose. Load a screenshot of your wallpaper and the widget reads as transparent. Storage and network (small) β€” a ring of used space, free and used in GB, and the last Wi-Fi reading. Weather (large) β€” current conditions, temperature, feels-like and the next five days, in the app's own palette. Weather data provided by Apple Weather. There are Control Center controls too, and rotating phrases on the Lock Screen. WEATHER Current conditions, the next hours and the next days, with a two-day temperature trend on the Now tab that marks every peak and trough. Location is used only to ask for the forecast where you are, and only while you are using the app. TOOLS A password generator that runs entirely on the device, using the system's cryptographic random source. Set the length and character classes, exclude look-alike characters (O 0 I l 1) and keyboard runs (abc, 123, qwe), and read the real strength in bits of entropy. Nothing is stored, nothing is sent, and the clipboard copy expires. PRIVACY No account. No analytics. No advertising. No third-party SDKs. The app has no server, so there is nowhere for your data to go. Everything you configure lives on your iPhone and disappears when you delete the app. ONE PAYMENT Buy it once. No subscription, no trial that turns into a bill, no in-app purchases. English and Spanish. iPhone only, iOS 17.6 or later. Weather data provided by Apple Weather. https://developer.apple.com/weatherkit/data-source-attribution/

Screenshots

Compass AR4 screens
DataFastView4 screens

Verdict

The call

The clearest difference is in-app purchases: DataFastView at none against Compass AR's 3. DataFastView also leads on iOS requirement (18.6 vs 26.0). On price, update cadence, ads and device support there is nothing between them.

Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. Compass AR sells 3 one-off in-app purchases. DataFastView asks for nothing beyond the download.

UpkeepUpdate frequency

Compass AR ships an update every 2 weeks, DataFastView every 3 weeks. Both last shipped on October 21, 2026.

Scorecard2 real differences Β· 4 level
Compass AR versus DataFastView: the parameters behind the verdict, then further details
ParameterCompass ARDataFastView
PriceFreeFree
Update frequencyEvery 2 weeks β€” betterEvery 3 weeks
AdsNoNo
In-app purchasesYesNo β€” better
DevicesiPhoneiPhone
Requires iOS26.018.6 β€” better
Further details β€” not scored
Size8 MB4 MB
Age rating4+4+
Developer飞 吕Moscoso Pacheco, Gonzalo Juvenal

In-app purchases

3 purchases

Compass AR

One-time3
  • Sponsor Β· A Lunch$0.99
  • Sponsor Β· A Coffee$2.99
  • Sponsor Β· A Resupply$6.99
None

DataFastView

No in-app purchases

Questions

Is Compass AR free?
Compass AR is free to download, with in-app purchases available.
Is DataFastView free?
DataFastView is free to download, with no in-app purchases.
Do Compass AR or DataFastView have ads?
Neither Compass AR nor DataFastView shows ads.
Which is updated more often, Compass AR or DataFastView?
Compass AR ships an update every 2 weeks, and DataFastView every 3 weeks. Most recently, Compass AR was updated on October 21, 2026 and DataFastView on October 21, 2026.

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