Kahunas vs ASPIRE Study
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Kahunas
This app connects clients with their online coaches. Coaches can manage clients, update plans, and communicate directly. Clients can log workouts, track nutrition, and message their coach.
- Client management
- Workout and diet plan updates
- Check-in tracking
- Direct messaging
- Workout logging
- Nutrition plan viewing
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Online Coaches - Manage your clients on the go. - Update workout or diet plans. - View check-ins. - Message your clients. Clients - Check-in in the app. - Message your coach. - Log your workouts. - View your nutrition & supplement plans. Terms of use: https://kahunas.io/terms-conditions Privacy policy: https://kahunas.io/privacy
ASPIRE Study
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The ASPIRE mobile application is an invite-only digital health companion specifically designed for first-time mothers participating in the multi-site, longitudinal, observational cohort study: ASPIRE: Advancing Stillbirth Prevention through Innovative Risk Evaluation. Funded via the Wellcome Leap InUtero programme and managed in collaboration with Medicines360, Precia, and Daiser, the ASPIRE app serves as a vital component to explore digital phenotyping. By collecting real-world contextual metrics alongside standard clinical care, the study seeks to build advanced predictive tools that can help identify signs of pregnancy complications—such as pre-eclampsia (PE), fetal growth restriction (FGR), and gestational diabetes mellitus (GDM)—earlier than traditional methods. Key App Features & Functionality • Secure & Simplified Task Management: A minimal, at-a-glance homepage dashboard that keeps your required pregnancy check-ins on track. Participants can see upcoming tasks and completion status, while raw health values remain hidden to support emotional safety and reassure you. • Validated Patient Reported Outcomes (ePROs): Periodically batch-complete brief, clinically validated surveys tracking physical symptoms, lifestyle habits, and maternal wellbeing. Check-ins occur on several occasions during pregnancy and postpartum, taking only 10–15 minutes per batch. • Seamless Connected Health Syncing: Secure integration with smart wearables (such as the Oura Ring) or your phone's native health environment (Apple Health / Google Fit) to log continuous physiological metrics like sleep cycles, heart rate variability, and movement without extra effort. • Comprehensive Verified Resource Hub: Immediate in-app access to a medically vetted Frequently Asked Questions (FAQ) library detailing the research protocols, data privacy safeguards, and step-by-step app support workflows. Strict Data Privacy & Research Security Your data is safe, private, and treated with strict protocol compliance. The ASPIRE app maps all logged data directly to a unique Participant ID (PID)—never storing patient-identifiable information on application servers. All information is encrypted, and safely stored by the clinical study team. Disclaimer: This app is for clinical research purposes only and does not provide medical care, diagnoses, or urgent symptom interpretation. Clinical decisions remain dictated strictly by your routine doctor or midwife care team.
Screenshots
Verdict
The clearest difference is in-app purchases: ASPIRE Study at none against Kahunas's 1. On price, update cadence, ads 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
Both are free to download. Kahunas sells 1 in-app purchase, starting at $95.99 per month. ASPIRE Study asks for nothing beyond the download.
Both ship on a similar rhythm, roughly monthly. The most recent releases landed on October 22, 2026 and October 13, 2026 respectively.
| Parameter | Kahunas | ASPIRE Study |
|---|---|---|
| Price | Free | Free |
| Rating | 3.3 (77 ratings) — better | — |
| Positive reviews | 19.3% of reviews | — |
| Number of ratings | 77 — better | — |
| Update frequency | Monthly | Monthly |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 14.0 — better |
| Further details — not scored | ||
| Size | 51 MB | 73 MB |
| Age rating | 17+ | 17+ |
| Developer | Mark Covey-Fox | Daiser Ltd |
Bugs and requests
Kahunas
Reported bugs
26 issues- App crashes when locking phone
- Crashes during workout logging
- Login screen freezes
- Barcode scanner launches blank screen
- Rest timer displays incorrect duration
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- Workout data disappears after app exit
- Nutrition data calculations incorrect (off by 150-200 calories)
- Food entries randomly removed from diary
- App logs out randomly
- Check-in data erases when re-entering
- Keyboard jumps page when filling workout data
- Workout ordering forces wrong selection
- Unable to view exercises correctly
- Infinite loading on customer programs
- Password not remembered/cannot be changed
- App-breaking bugs with slow support response
- Payment info failure locks account
- Blue circle of death (complete data loss)
- Workout session disappears if client misses scheduled time
- Notifications constantly pop up
- Unable to create account/sign up issues
- App freezes when viewing longer text in workouts
- Inconsistent date display for workouts and check-ins
- Unable to select workouts after update
- Cannot edit daily check-ins
- Syncing issues between devices
Requested features
18 requests- Apple Watch integration and complications
- MyFitnessPal integration
- Save/reuse meal feature
- Auto-save functionality for workouts
- Weight tracking widget
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- Cardio and step tracking from Apple Health
- Better notification settings/customization
- Drop set logging within sets
- Exercise order switching capability
- Meal filter options
- Weekly macro averages calculation
- Persistent chat history (not auto-delete)
- Reply functionality for check-ins
- Dark mode option
- Better dashboard home screen
- PDF viewing in-app
- Multi-device login capability
- Offline mode
ASPIRE Study
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Kahunas
- Monthly subscription$95.991 Month
ASPIRE Study
No in-app purchases
Questions
Is Kahunas free?
Is ASPIRE Study free?
Do Kahunas or ASPIRE Study have ads?
Which is updated more often, Kahunas or ASPIRE Study?
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