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Best Oura Ring 4 Apps & Games

42+ iOS apps & games curated and reviewed

3.6 avg rating
20 free apps & games
Updated August 2026

Out of 42+ oura ring 4 apps and games on iOS, 20 are free and the rest sit in the paid tier. This page sorts them so you can compare both sides before you commit.

Compare top Oura Ring 4 Apps & Games (August 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1OuraOuraFree4.9★ (285K)NoNoAug 2026
2Find My RingFind My RingFree4.9★ (655)NoYesAug 2026
3Natural Cycles: Fertility AppNatural Cycles: Fertility AppFree4.8★ (30K)YesYesAug 2026
4The Ring Size App™ by HitchedThe Ring Size App™ by HitchedFree2.1★ (211)YesNoMay 2026
5Ring Sizer · TrueRingRing Sizer · TrueRingFree—YesYesJul 2026
6Knuckle: Ring SizerKnuckle: Ring SizerFree—NoYesJul 2026
7Camera Ring SizerCamera Ring SizerFree——NoAug 2026
8Jostens Ring SizerJostens Ring SizerFree1.0★ (8)NoNoJul 2026

Top Picks for Oura Ring 4

Oura#1

Oura by Oura Health Oy

Editor's Choice
💪 Health & Fitness
4.9😐(285K ratings)
Free
#12in Health & Fitness
Oura screenshot 1
Oura screenshot 2
Oura screenshot 3
Oura screenshot 4
Oura screenshot 5
Oura screenshot 6

This smart ring and companion app provide daily health insights and personalized recommendations based on your body's biometrics. Track sleep, activity, and readiness with actionable guidance to improve overall wellness and understand your body's signals.

What We Love

  • 🚀 Accurate sleep tracking
  • 👍 Comfortable and stylish ring
  • 🔋 Long battery life
  • 💡 Helpful insights and recommendations

Room to Improve

  • 🐛 Inconsistent activity tracking
  • 🔒 Requires monthly subscription to access full data
  • 🐛 Inaccurate sleep stage detection
Find My Ring#2

Find My Ring by Andreas Assermark

Strong Contender
🔧 Utilities
4.9😊(655 ratings)
FreeIn-App Purchases
Find My Ring screenshot 1
Find My Ring screenshot 2
Find My Ring screenshot 3

Locate your lost Oura ring using its Bluetooth signal strength. This app provides a real-time indicator to help you find your device, especially when it's hidden indoors.

What We Love

  • 🚀 Accurate location tracking
  • 👍 Easy to use
  • 🔍 Helpful in finding lost ring
  • 💰 Free app with optional tip

Room to Improve

  • 🐛 Inconsistent signal detection
  • ⚠️ Doesn't work with Oura Gen 4 ring
  • 🔍 Requires being close to the ring
Natural Cycles: Fertility App#3

Natural Cycles: Fertility App by NaturalCycles Nordic AB

Ovulation Tracker・FDA-cleared
Worth Considering
💪 Health & Fitness
4.8😊(30K ratings)
FreeAdsIn-App Purchases
#28in Health & Fitness
Natural Cycles: Fertility App screenshot 1
Natural Cycles: Fertility App screenshot 2
Natural Cycles: Fertility App screenshot 3
Natural Cycles: Fertility App screenshot 4
Natural Cycles: Fertility App screenshot 5
Natural Cycles: Fertility App screenshot 6

This app helps women track their hormonal health and fertility using body temperature data. It offers hormone-free contraception, pregnancy planning, and insights into various cycle stages. It adapts to individual cycles, even irregular ones, providing daily fertility status.

What We Love

  • 👍 Teaches users about their cycle
  • 👍 Helps users understand their body
  • 👍 Provides a natural contraceptive option
  • 👍 Accurate in predicting ovulation and periods

Room to Improve

  • 🐛 Inconsistent in predicting ovulation and periods for some users
  • 🐛 Thermometer issues (loud, hard to read, no Bluetooth connectivity)
  • 🐛 Difficult to use for users with irregular cycles or disrupted sleep schedules

More Oura Ring 4 apps to explore

4
The Ring Size App™ by Hitched
The Ring Size App™ by Hitched
The Ring Size App™ by Hitched
by Radius Technologies
Free

Easily determine your ring size from the comfort of your home. This app eliminates the need for physical charts or store visits, providing quick and accurate sizing in minutes.

Determine ring size at homeQuick and easy to useAccurate sizing
🌟 Lifestyle
(211)
free with in-app purchases
5
Ring Sizer · TrueRing
Ring Sizer · TrueRing
Ring Sizer · TrueRing
Find Your Ring Size Easily
Free
🔧 Utilities
(0)
6
Knuckle: Ring Sizer
Knuckle: Ring Sizer
Knuckle: Ring Sizer
Size a ring on your screen
Free
🔧 Utilities
(0)
7
Camera Ring Sizer
Camera Ring Sizer
Camera Ring Sizer
by Vocom software s.r.o.
Free
🌟 Lifestyle
(0)
8
Jostens Ring Sizer
Jostens Ring Sizer
Jostens Ring Sizer
by Radius Technologies
Free

Easily determine your accurate ring size for any finger with this intuitive application. It provides precise measurements down to 1/8 sizes and offers convenient conversion to international sizing standards.

Accurate ring size measurementMeasures down to 1/8 sizesWorks on any finger
🛍️ Shopping
(8)
free
9
osaring sizer
osaring sizer
osaring sizer
osaring sizer
Free
🔧 Utilities
(0)
10
Ring Sizer – Size Measure app
Ring Sizer – Size Measure app
Ring Sizer – Size Measure app
Get Your Ring Size Instantly
Free
🔧 Utilities
(0)
11
Ring Sizer & Size Finder
Ring Sizer & Size Finder
Ring Sizer & Size Finder
Measure ring,finger & ruler
Free

Easily determine your ring size using your iPhone's screen. Measure existing rings or your finger directly, with support for international sizing standards and a built-in ruler for everyday use.

Accurate ring sizing by placing rings on screenFinger width measurement for direct sizingInternational size conversion (US, UK, EU, JP, CN)
🔧 Utilities
(2)
free
12
Ring Sizer+
Ring Sizer+
Ring Sizer+
Size Measure, Ruler & Chart
Free

Effortlessly measure rings, jewelry, and other objects with precision using visual cues and a digital ruler. Supports global sizing standards and stores measurement history for convenience. Ensures a perfect fit for your precious items.

Seamless measurement experienceVersatile digital rulerGlobal size support
🔧 Utilities
(12)
free with in-app purchases
13
Ring sizer : Unit Convertor
Ring sizer : Unit Convertor
Ring sizer : Unit Convertor
Size Rings and convert Units
Free

Easily determine your accurate ring size and convert between international sizing standards. This tool helps you find the perfect fit for any ring, avoiding the frustration of ill-fitting jewelry. Save your sizes and compare them effortlessly.

Accurate ring and finger size measurementConvert between international ring size standards (US, UK, EU)Simple and easy-to-use interface
🔧 Utilities
(13)
ad-supported
14
Ring Buzz
Ring Buzz
Ring Buzz
Jump and don't hit the line!
Free
🎮 Games
(0)
15
Your Perfect Ring - RingFit AI
Your Perfect Ring - RingFit AI
Your Perfect Ring - RingFit AI
Engagement Ring Try On
Free

Virtually try on engagement rings and wedding bands using AI. Upload a photo of your hand to see how various styles sparkle, from gold to rose, solitaire to halo. Save and share your favorite looks effortlessly.

AI-powered virtual ring try-onBrowse engagement and wedding band stylesSee rings on your own hand
🌟 Lifestyle
(1)
free with in-app purchases
16
AI Wedding Band Designer
AI Wedding Band Designer
AI Wedding Band Designer
Custom Couple Ring Studio
Free
🌟 Lifestyle
(0)
17
今から何する？　-what's next?-
今から何する？　-what's next?-
今から何する？　-what's next?-
by HIROTA TAKEDA
Free
🎬 Entertainment
(0)
18
Healthzilla: Healthy Habits
Healthzilla: Healthy Habits
Healthzilla: Healthy Habits
Sync & Track Fitbit, Oura Ring
Free

This app analyzes data from your wearables to provide daily recommendations and help you build healthy habits. It offers free programs for various habits and a 100-day challenge to support your fitness goals. You can even measure stress levels using your phone's camera.

Syncs with wearables (Fitbit, Oura Ring, Apple Watch)Analyzes health data for habit scoringPersonalized daily recommendations
💪 Health & Fitness
(74)
free
19
ID Photo: Make ID Photo Simple
ID Photo: Make ID Photo Simple
ID Photo: Make ID Photo Simple
by Takashi Ushikoshi
Free
🔧 Utilities
(0)
20
Ring Size Measure - Ring Sizer
Ring Size Measure - Ring Sizer
Ring Size Measure - Ring Sizer
Ring Finger Measurement Sizing
Free
🔧 Utilities
(0)

FAQ about Oura Ring 4

What are the best oura ring 4 apps & games for iPhone?
Oura tops our oura ring 4 apps & games ranking as of August 2026, with a 4.9-star average from 285K App Store ratings, and it's free to download.
Yes — 20 of the top oura ring 4 apps & games we rank are free to download, including Oura and Find My Ring.
Oura has no ads and has no in-app purchases, according to its App Store listing as of August 2026.
We track 42+ oura ring 4 apps & games on the iOS App Store as of August 2026, ranked by rating, recency, and analysis of real user reviews.
The Oura app acts as a personal health companion, translating data from the Oura Ring into meaningful insights and daily recommendations. It helps users understand their sleep, activity, and readiness levels to make health and wellness a daily practice.
Key features include three daily scores (Sleep, Activity, Readiness) for a clear understanding of your body's state, advanced sleep monitoring with optimization tips, and detailed activity tracking. It also offers cycle insights, stress resilience guidance, and illness detection.