Comparison

Battery Testing vs Overworld Map

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

Head to head
About

Battery Testing

This app helps you understand your iOS device's battery performance. It identifies battery runtimes and provides data to help you determine if your battery needs replacement. Monitor your device's battery health and runtime with detailed insights.

Highlights
  • Monitor device runtimes
  • Estimated and raw battery data
  • Check battery health
  • Identify battery issues
Features
Read full description

BatteryTesting is a well-designed battery benchmarking app for iOS devices. It's also the perfect test for your iOS battery, no matter if it’s brand new or gently used. Did you ever wonder why your device's battery is always running low? With BatteryTesting and its technique to identify battery runtimes, you will always know what's wrong with your battery. ►WHAT IT DOES The application will display your device's runtimes adjusted accordingly or even show you further data on your battery (depending on the iOS version). ►KEY FEATURES • Monitor your device's runtimes • Estimated, and calculated raw data • Easily to check your battery's health ►SUPPORT The main objective of BatteryTesting is to give users an overview of their device's runtimes. If you are unsure about a battery replacement, feel free to send us an e-mail or tweet us (@BatteryTesting).

About

Overworld Map

Features
Read full description

Your world, revealed tile by tile. Overworld turns the world around you into a fog-of-war minimap. The map starts hidden. As you walk, run, ride, or wander, the fog lifts cell by cell to reveal streets, parks, and paths. Over time, your explored world fills in. No streaks, badges, leaderboards, or fitness goals. Just you and the map. HOW IT WORKS • Move through the world with the app open or in your pocket. • Nearby map cells reveal as you go. • Pause tracking, adjust the fog, or erase an area to explore it again. PRIVATE BY DESIGN Overworld is local-first and has no developer-run server. • No account or sign-up. • No analytics, advertising, or developer tracking. • Location is processed on-device and is not sent to the developer. • Overworld stores revealed grid cells and their first-reveal times for playback—not raw GPS fixes, routes, or speeds. • Standard and password-protected map backups are free. You choose where exported files are saved or shared. MAKE IT YOURS Choose a light, standard, or dense fog layer. The free Classic fog draws a light grid over each discovery; Soft Veil adds adjustable rounded edges, and Glowing Grid lights up the grid — both with Overworld Pro. Pick your on-map avatar: the classic puck, the frosted-glass lantern-carrying Wayfarer, or Paper Plane. Preview your selected avatar in Settings. Wayfarer and Paper Plane turn with your travel direction. SHARE YOUR MAP • Share your current view as an image for free, or export a short replay video with Overworld Pro. • A Home Screen widget keeps your explored world one glance away. • Both are rendered entirely on-device. OVERWORLD PRO A one-time purchase unlocks map-history playback and replay video export, heading follow and the 3D Explore view with remembered pinch-to-zoom, satellite and hybrid maps, additional fog styles and palettes, accent themes, Tight or Wide reveal widths, and the Wayfarer and Paper Plane avatars. Playback history is recorded locally for everyone, so upgrading later includes discoveries made after the playback update. No subscription or recurring fee. Family Sharing and Restore Purchases are supported. Wayfarer and Paper Plane are both included with Overworld Pro; no separate avatar purchase is required. WHY BACKGROUND LOCATION? Always location lets your map keep revealing while your screen is off, another app is open, or your phone is in your pocket. GOOD TO KNOW • Continued background location use can reduce battery life. Pause revealing at any time in Settings. • Your live explored map is stored in the app and may be included in device backups according to your iOS and iCloud settings. • Overworld cannot recover a forgotten export password. Go somewhere. The map is waiting.

Screenshots

Battery Testing4 screens
Overworld Map4 screens

Verdict

The call

The clearest difference is ads: Overworld Map at none against Battery Testing's shown. Battery Testing's advantage is iOS requirement (17.0 vs 26.0). On price, update cadence, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Battery Testing sells 1 one-off in-app purchase and Overworld Map sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly fortnightly. The most recent releases landed on November 2, 2026 and October 24, 2026 respectively.

Scorecard2 real differences · 8 level
Battery Testing versus Overworld Map: the parameters behind the verdict, then further details
ParameterBattery TestingOverworld Map
PriceFreeFree
Rating4.5 (12K ratings) — better—
Positive reviews22.9% of reviews—
Number of ratings12K — better—
Update frequencyFortnightlyFortnightly
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPad — betteriPhone
Requires iOS17.0 — better26.0
Further details — not scored
Size24 MB3 MB
Age rating9+4+
DeveloperBinh TranDavid Haggerty

Bugs and requests

Battery Testing

Reported bugs

2 issues
  • App crashes or stops responding during testing
  • Incorrect device information detection

Requested features

3 requests
  • Provide more detailed battery health metrics
  • Improve accuracy of battery testing
  • Reduce ad interruptions during testing

Overworld Map

Not enough reviews yet to summarise bugs or requests.

In-app purchases

1 purchases

Battery Testing

One-time1
  • Remove Advertisements$1.99
1 purchases

Overworld Map

One-time1
  • Overworld Pro$3.99

Questions

Is Battery Testing free?
Battery Testing is free to download, with in-app purchases available.
Is Overworld Map free?
Overworld Map is free to download, with in-app purchases available.
Do Battery Testing or Overworld Map have ads?
Battery Testing shows ads; Overworld Map does not.
Which is updated more often, Battery Testing or Overworld Map?
Battery Testing ships an update fortnightly, and Overworld Map fortnightly. Most recently, Battery Testing was updated on November 2, 2026 and Overworld Map on October 24, 2026.

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