1. Home
  2. Topics
  3. O2 Alternative

Best O2 Alternative Apps

56+ iOS apps curated and reviewed

4.1 avg rating
18 free apps
Updated June 2026

From beginner-friendly picks to power-user tools, our o2 alternative list covers 56+ iPhone apps updated through June 2026. Compare ratings, prices, and screenshots in one place.

Compare top O2 Alternative Apps (June 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1O2 aplikáciaO2 aplikáciaFree4.5★ (184)NoNoSep 2026
2Oximeter - Track Oxygen SpO2Oximeter - Track Oxygen SpO2Free4.5★ (466)NoYesSep 2026
3Blood Oxygen | O2 Monitor app+Blood Oxygen | O2 Monitor app+Free4.6★ (423)NoYesSep 2026
4Skrill - Pay & Transfer MoneySkrill - Pay & Transfer MoneyFree4.6★ (24K)YesNoSep 2026
5Waplog - Dating & Video CallWaplog - Dating & Video CallFree4.6★ (55K)YesYesSep 2026
6OnPhone: Second Number & eSIMOnPhone: Second Number & eSIMFree4.6★ (52K)NoYesSep 2026
7O2 Buddy: Blood Oxygen SpO2O2 Buddy: Blood Oxygen SpO2$0.994.6★ (46)NoYesSep 2026
8ChatOn AI - Chat Bot AssistantChatOn AI - Chat Bot AssistantFree4.7★ (284K)YesYesSep 2026

Top Picks for O2 Alternative

O2 aplikácia#1

O2 aplikácia by O2 Slovakia, s.r.o.

Dostaňte vaše O2 pod palec.
Editor's Choice
📊 Productivity
4.5(184 ratings)
Free
O2 aplikácia screenshot 1
O2 aplikácia screenshot 2
O2 aplikácia screenshot 3
O2 aplikácia screenshot 4
O2 aplikácia screenshot 5
O2 aplikácia screenshot 6

Manage your mobile plan, monitor usage, pay bills, and get exclusive benefits. Easily add new services, contact support via chat, and even get new SIM cards for your family.

Oximeter - Track Oxygen SpO2#2

Oximeter - Track Oxygen SpO2 by AVTOSTROI, OOO

Blood O2 Monitor Tracker
Strong Contender
💪 Health & Fitness
4.5(466 ratings)
FreeIn-App Purchases
Oximeter - Track Oxygen SpO2 screenshot 1
Oximeter - Track Oxygen SpO2 screenshot 2
Oximeter - Track Oxygen SpO2 screenshot 3
Oximeter - Track Oxygen SpO2 screenshot 4

Monitor and record your blood oxygen saturation (SpO2) levels with this personal health tracking app. It offers detailed analytics, daily wellness guides, and data export options. Sync your health data with Apple Health for a comprehensive overview.

Blood Oxygen | O2 Monitor app+#3

Blood Oxygen | O2 Monitor app+ by Yana Shestakova

Saturation Level + Pulse Rate
Worth Considering
🏥 Medical
4.6(423 ratings)
FreeIn-App Purchases
Blood Oxygen | O2 Monitor app+ screenshot 1
Blood Oxygen | O2 Monitor app+ screenshot 2
Blood Oxygen | O2 Monitor app+ screenshot 3
Blood Oxygen | O2 Monitor app+ screenshot 4
Blood Oxygen | O2 Monitor app+ screenshot 5

Track your blood oxygen saturation (SpO2) and pulse rate daily. Log readings from your oximeter, monitor your normal range, and stay informed about your health. Features include a log diary, multi-profile support, and Apple Health synchronization.

More O2 Alternative apps to explore

FAQ about O2 Alternative

What are the best o2 alternative apps for iPhone?
O2 aplikácia tops our o2 alternative apps ranking as of June 2026, with a 4.5-star average from 184 App Store ratings, and it's free to download.
Yes — 18 of the top o2 alternative apps we rank are free to download, including O2 aplikácia and Oximeter - Track Oxygen SpO2.
O2 aplikácia has no ads and has no in-app purchases, according to its App Store listing as of June 2026.
We track 56+ o2 alternative apps on the iOS App Store as of June 2026, ranked by rating, recency, and analysis of real user reviews.
The O2 app allows you to conveniently monitor your current usage, pay bills, top up credit, manage your O2 Spolu groups, and get exclusive weekly surprises. You can also purchase new SIM cards, including the O2 Junior SIM for children, and activate services like travel insurance.
You can easily connect with O2 support assistants for free directly through the chat feature within the app. This provides a quick and convenient way to resolve any more complicated issues you might encounter with your services.