Comparison

Depth vs Water Temperature

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

Head to head
About

Depth

Track your underwater activities with real-time depth, temperature, and duration. Log sessions for detailed summaries including GPS entry points and weather data. Ideal for snorkeling, free diving, or pool fun.

Highlights
  • Real-time depth and temperature monitoring
  • Session duration tracking
  • Maximum depth reached
  • Automatic or manual activation
  • Dive summaries with GPS and weather
  • Depth graph and map visualization
Read full description

On Apple Watch Series 10, use the Depth app for recreational underwater activities to 6m (20ft) for snorkeling or simply playing in the swimming pool. On Apple Watch Ultra use the Depth app for recreational underwater activities to 40m (130ft), for free diving, snorkeling or simply playing in a swimming pool Features • See your current depth, water temperature, duration underwater as well as the maximum depth you’ve reached to 6m (20ft) on Apple Watch Series 10 or to 40m (130ft) on Apple Watch Ultra • Choose to automatically activate as soon as you are submerged, or simply tap on the Depth app to launch • Session logs are stored on Apple Watch Ultra or Apple Watch Series 10 for seven days, and in the Fitness app in iOS until deleted • Each depth session in iOS has a dive summary, including: underwater time, maximum depth, water temperature, a graphical representation of depth during the session, as well as a map with GPS entry point and pertinent weather at the time. Tap on the depth graph for a more comprehensive view with details of the depth and water temperature during the session. Tap on the map for an expanded view of the region where the session was entered.

About

Water Temperature

Monitor and record water temperatures directly from your Apple Watch. Get real-time readings, switch between units, and track your session duration. Ideal for water sports enthusiasts and anyone interested in water conditions.

Highlights
  • Real-time temperature monitoring
  • Fahrenheit/Celsius unit switching
  • Accurate temperature readings
  • Session timer
  • Min/Max temperature recording
  • Latest reading display
  • Dive Mode integration
Features
Read full description

The Water Temperature app is designed to help you monitor and record water temperatures using your Apple Watch. This app is perfect for surfers, swimmers, ice-bathers, and anyone wants water temperature readings in real-time. Key Features: - Real-Time Temperature Monitoring: Instantly view the current water temperature on your Apple Watch. - Temperature Units: Easily switch between Fahrenheit and Celsius. - Temperature Accuracy: Provides accurate readings with a ± precision. - Session Timer: Track the duration of your water activities with the built-in timer. - Min/Max Temperature Recording: Record and review the minimum and maximum water temperatures during your session. - Latest Reading Display: Always displays the most recent temperature reading and how long ago it was measured when out of the water. - Dive Mode Integration: Easily set up Dive mode using the Action button for quick access during water activities. Usage Instructions: 1. Install the Water Temperature app on your Apple Watch. 2. Enable the app in your settings to start monitoring water temperatures. 3. Switch to the Water Temperature app on your watch to begin recording temperatures. 4. View real-time temperature updates directly on your watch face. 5. Use the session timer to keep track of the duration of your activities. 6. Review the minimum and maximum temperatures recorded during your session. 7. Configure the Action button to quickly launch Dive mode for underwater activities by following the setup instructions in your watch settings. Note: This app is available only on devices with a Depth Gauge and Water Temperature Sensor. See Measure underwater temperature, duration, and depth on Apple Watch for more information: https://support.apple.com/guide/watch/measure-underwater-temperature-duration-depth-apd9073c83d6/watchos WARNING: Underwater activities are risky. To reduce the risk of serious or fatal injury, read and follow all instructions and warnings in the Apple Watch Ultra User Guide. THIS APP IS NOT A DIVE COMPUTER AND IS INTENDED FOR SURFACE LEVEL ACTIVITY ONLY. Enhance your water activities with accurate and reliable water temperature monitoring. Download the Water Temperature app now and start tracking!

Screenshots

Water Temperature3 screens

Verdict

The call

The clearest difference is price: Depth at Free against Water Temperature's $2.99. Depth also leads on rating (5.0 vs 3.8) and update cadence (every 6 months vs every 14 months). Water Temperature's advantage is ratings volume (6 vs 1). On ads, in-app purchases, device support and iOS requirement 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

Depth is free to download; Water Temperature costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Depth holds the better App Store score, 5.0 against 3.8. That said, the two scores are not equally well evidenced: Water Temperature has 6 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

Depth ships an update every 6 months, Water Temperature every 14 months. The most recent releases landed on September 18, 2026 and October 24, 2026 respectively.

Scorecard5 real differences · 5 level
Depth versus Water Temperature: the parameters behind the verdict, then further details
ParameterDepthWater Temperature
PriceFree — better$2.99
Rating5.0 (1 ratings) — better3.8 (6 ratings)
Positive reviews—16.7% of reviews
Number of ratings16 — better
Update frequencyEvery 6 months — betterEvery 14 months
AdsNoNo
In-app purchasesNoNo
MonetizationFree — betterPaid
DevicesiPhone, Apple WatchiPhone, iPad, Apple Watch — better
Requires iOS16.0 — better17.0
Further details — not scored
Size1 MB2 MB
Age rating4+4+
DeveloperApple Inc.Aaron Satterfield

Customer experience

Depth

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Water Temperature

All ratings4 ratings
Positive50.0%
Neutral25.0%
Negative25.0%
Written reviews6 reviews
Positive16.7%
Neutral16.7%
Negative66.7%

In-app purchases

None

Depth

No in-app purchases

None

Water Temperature

No in-app purchases

Questions

Is Depth free?
Depth is free to download, with no in-app purchases.
Is Water Temperature free?
Water Temperature costs $2.99, with no in-app purchases.
Which has better reviews, Depth or Water Temperature?
Depth is rated higher. Depth averages 5.0 out of 5 from 1 ratings, while Water Temperature averages 3.8 from 6 ratings.
Do Depth or Water Temperature have ads?
Neither Depth nor Water Temperature shows ads.
Which is updated more often, Depth or Water Temperature?
Depth ships an update every 6 months, and Water Temperature every 14 months. Most recently, Depth was updated on September 18, 2026 and Water Temperature on October 24, 2026.

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