iFORA O2 vs Aceto
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
iFORA O2
Analyze sleep quality, heart rate variability, and practice guided breathing exercises. Get personalized recommendations and track your progress over time to improve sleep apnea and mind-body balance.
- Sleep SpO2 and heart rate tracking
- Sleep apnea risk screening
- Heart rate variability (HRV) analysis
- Guided breathing exercises
- HRV biofeedback
- Personalized recommendations
- Exportable PDF reports
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iFORA O2 is a total solution help you analyze and improve sleep apnea and mindbody related problems. The App integrates with FORA Bluetooth Pulse Oximeter and Intelligent Cloud Analysis System to provide three main features: 1. Sleep SpO2 analysis, 2. HRV analysis, 3. Resonance Breath (HRV Biofeedback). ----------------------- 1. Sleep SpO2 analysis 1-1. records the whole night of SpO2 and heart rate readings with sampling rate of 1 sample per second. 1-2. provides analysis report with SpO2/heart rate trend chart and the following parameters related to sleep apnea: (1) lowest SpO2, (2) highest SpO2, (3) average SpO2, (4) ODI3%, (5) ODI4%, (6) CT90%, (7) overall Sleep SpO2 classification ...etc. The report (pdf format) could be sent to user registered email address 1-3. provide history Sleep SpO2 report for check Sleep SpO2 analysis help test the severity of oxygen saturation deficiency. It could be used for not only risk screening but also for treatment improvement tracking 1-4. analysis and recommendation personalized analysis and recommendation based on multi-night test results and questionnaire 1-5. sleep note possible apnea improvement solutions in sleep note (e.g. CPAP, nasal breath, side sleep, pillow) - help user find suitable solution ------------------------------------- 2. HRV (Heart rate variability) analysis 2-1. provides heart rate variability analysis (Autonomic Nervous System Analysis) with 5 parameter: - SDNN (overall Autonomic Nervous System index) - LF (Sympathetic Nervous Combo index) - HF (Parasympathetic Nervous index) - LF/HF (Balance index) - heart rate 2-2. provides classification of overall HRV score and individual suggested range for each parameter 2-3. provides knowledge of possible Causes, Risks and Notice for HRV scores outside suggested range (e.g. sleep disorder, stress level, diseases...etc.) --------------------------------------- 3. Resonance Breath (HRV biofeedback) 3-1. provides visual Guidance for breathing exercise and biofeedback of user’s condition 3-2. supports 7 types of breathing exercise frequency: 4.5, 5, 5.5, 6, 6.5, 7, 7.5 BPM. User could scan and test the most suitable frequency for him to exercise 3-3. support 'Resonance' and 'Coherence' parameter to help user scan and test the most suitable breathing frequency for him ============================= iFORA O2 provide free basic function and three advanced function that need subscription. feature summary link: http://foracare.com/app/content2/app_feature_en.pdf Subscription pricing and terms: iFORA O2 offers an auto-renewing monthly subscription with the below pricing $9.99/month for Sleep SpO2 $3.99/month for HRV $1.99/month for Breathing (HRV Biofeedback). Payment will be charged to your iTunes Account. Subscriptions automatically renew unless auto-renew is turned off at least 24-hours before the end of the current subscription period. Your iTunes account will be charged for renewal, with the cost identified on the price button of the subscribed Membership, within 24-hours prior to the end of the current period. You may manage your subscription and auto-renewal may be turned off by going to your iPhone Account Setting. Terms of service: http://foracare.com/app/content2/terms_en.pdf Privacy policy: http://foracare.com/app/content2/privacy_en.pdf ================================ The iFORA O2 App needs to pair with the FORA SpO2 Bluetooth Pulse Oximeter to work. Google Search: FORA SpO2 FORA homepage: https://foracare.com This APP will access and update your Health data to synchronize with Apple HealthKit. EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ ================================ The iFora O2 app has integrated with Apple Health, allowing you to import health data such as steps, heart rate, sleep status, and exercise information. This integration helps you synchronize and manage your health information effectively.
Aceto
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Meet aceto The aceto app is your personal fat-burning companion. Paired with the aceto Go breath acetone meter, it turns the fat-burning signals (acetone) in your breath into daily trends. We make your body management visible so you can go the distance. [Real-Time Fat Burn Measurement] Just take a breath, and the app instantly displays your current fat-burning level. From "not yet started" to "high-speed fat burn," your status is clear at a glance. [Integrated Diet Logging] Track your daily food choices and compare them with changes in your breath acetone. See exactly "which meal boosts your fat burn, and which one slows it down." [Multi-Dimensional Data Tracking] Consolidate your daily weight, body fat, and acetone data. Overlay acetone charts with weight, body fat, fasting, and water intake. Review the trajectory of your bodily changes to discover your unique metabolism rhythm. [Fasting & Water Tracker] Set your eating and fasting windows to help your body build a regular metabolic rhythm. Log your daily water intake and set reminders—let every sip of water fuel your metabolism. *This app requires the aceto Go breath acetone meter hardware to function. *This product is not a medical device and is intended for health management and monitoring purposes only. *For any health-related decisions, please consult your physician or professional medical personnel.
Screenshots
Verdict
The clearest difference is in-app purchases: Aceto at none against iFORA O2's 4. Aceto also leads on update cadence (weekly vs every 3 weeks). On price, ads, 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
Both are free to download. iFORA O2 sells 4 in-app purchases, starting at $1.99 per month. Aceto asks for nothing beyond the download.
iFORA O2 ships an update every 3 weeks, Aceto weekly. The most recent releases landed on August 11, 2026 and September 24, 2026 respectively.
| Parameter | iFORA O2 | Aceto |
|---|---|---|
| Price | Free | Free |
| Rating | 3.8 (18 ratings) — better | — |
| Positive reviews | 56.3% of reviews | — |
| Number of ratings | 18 — better | — |
| Update frequency | Every 3 weeks | Weekly — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Freemium | — |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 14.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 53 MB | 37 MB |
| Age rating | 12+ | 4+ |
| Developer | ForaCare Inc. | Fitz Inc. |
In-app purchases
iFORA O2
- Breath Monthly Member$1.991 Month
- HRV Monthly Membership$3.991 Month
- Sleep SpO2 Month Membership$9.991 Month
- 1 License$2.99
Aceto
No in-app purchases









