Mya vs Within
Price, ratings, monetisation and update history for both apps, side by side ā with what reviewers say about each.
Mya
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Mya is built for people living with ME/CFS (myalgic encephalomyelitis / chronic fatigue syndrome). Living with ME/CFS means unpredictable crashes, symptoms that shift day to day, and constantly having to prove you're not "just tired" to doctors, employers, and family. Mya fixes that. Log your day in seconds Rate your functional level on the Bell Disability Scale, track brain fog, and note how you're pacing. Built for days when even typing is hard. Track Crashes, not "flares" Post-Exertional Malaise (PEM), the delayed crash after physical, cognitive, emotional, or social exertion, is the hallmark of ME/CFS. Mya calls it what patients call it: a Crash. Log its severity, how long it lasted, and what may have triggered it. Pace with your Energy Envelope Rate available energy against expended energy each day, using Leonard Jason's Energy Envelope model, the pacing approach the ME/CFS community actually uses. Get warned before you overspend Mya watches for the early signals that tend to precede a crash: an overspent envelope, rising brain fog, a declining functional trend. Rest before you crash, not after. Connect your health data Sync with Apple Health to capture steps, sleep, heart rate, HRV, and active calories automatically. See how your body's signals line up with your symptoms. Get AI powered insights Mya looks at your logged symptoms and health data together and surfaces patterns you might miss Take the DSQ-SF Complete the DePaul Symptom Questionnaire, Short Form (DSQ-SF), the validated clinical instrument developed by Leonard A. Jason, PhD, used in ME/CFS research and diagnosis. Track your medications Log what you take, including as needed medications, with reminders so nothing gets missed. Share evidence with your doctor Generate a clean PDF summary of your Crashes, functional trend, and DSQ-SF results. Ready for the appointment where you have fifteen minutes to make months of symptoms count. Your health data stays in your secure account. We never sell your data. By subscribing, you agree to Apple's standard Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Within
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Within is a pacing app for people whose energy is limited and unpredictable. Set today's capacity, log what things cost you, keep a reserve and everything stays on your iPhone. Within is built around the energy envelope: an amount you have for today, with a reserve line held back so an ordinary day doesn't have to use everything you have. You say how much you have, tap what you did, and Within shows where the day went. There is nothing to fill, nothing to beat, and nothing that congratulates you for doing more. Everything runs locally. There is no account and no server, Within contains no network code at all, so nothing you log can leave your iPhone unless you export it yourself. HOW IT WORKS Set today's capacity in the morning. Your first feeling is enough, it's an estimate of your day, not a measurement. Tap what you did as the day goes on. Costs are set up once, so logging later takes a tap. Watch the envelope and stay below your reserve line. It's a floor, not a target. In the evening, note how the day went if you want to. Skipping is a complete answer. KEY FEATURES ⢠Today's envelope with a protected reserve line, and a breakdown of where the day went ⢠Activity presets with the cost and length that match your own experience, adjustable any time without rewriting past entries ⢠Upright time and rest tracked separately ⢠Optional symptoms and evening check-in, either can be turned off completely ⢠History with day detail, a month calendar, and week-to-week comparison ⢠Patterns: things that showed up together in your own data, with an attribution window you set for your own delayed onset ⢠Reports for your doctor or care team, PDF and CSV, generated on the device ⢠Crash mode: a quieter screen with no prompts or questions, plus a contact to call, your medications, and communication cards to show someone instead of speaking ⢠Siri and Shortcuts for logging an activity, logging rest, or setting your capacity ⢠Appearance, visual comfort and haptic settings ⢠No streaks, no scores, no rankings. A day with nothing logged is just a day. PRIVACY FIRST ⢠Within has no network code, so your data cannot be sent anywhere ⢠No account, no sign-in, no server ⢠No advertising trackers and no analytics ⢠Everything you log stays on your iPhone ⢠Exports are files made on your device, shared only if you choose to share them IMPORTANT Within is a personal pacing and tracking tool. It is not a medical device and does not diagnose, treat, cure or prevent any condition, including ME/CFS, long COVID, POTS, fibromyalgia or any other illness. Capacity is your own estimate of your day, not a measurement. Patterns Within notices are associations in your own logged data, they are not findings, and they never describe a cause. If you are concerned about your health, please consult a qualified healthcare professional. SUBSCRIPTION Within $2.99 / month, auto-renewing. What the subscription unlocks: ⢠Logging activities and rest ⢠Setting your daily capacity What stays open either way: ⢠History and day detail ⢠Patterns ⢠Reports, PDF and CSV export ⢠Crash mode New users receive 3 days of full access on first install, no payment required. After that, logging and capacity require an active subscription. The paywall is shown in-app and can always be dismissed. Subscription details: ⢠Length: 1 month, auto-renewing ⢠Price: $2.99 / month (local equivalent shown on the subscription screen) ⢠Payment is charged to your Apple Account at confirmation of purchase ⢠The subscription renews automatically unless canceled at least 24 hours before the end of the current period ⢠You can manage or cancel your subscription anytime in your Apple Account settings on the App Store Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://skilja95.github.io/within-privacy/
Screenshots
Verdict
The clearest difference is iOS requirement: Mya at 15.1 against Within's 17.0. On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price Ā· Rating Ā· Positive reviews Ā· Number of ratings Ā· Update frequency Ā· Ads Ā· In-app purchases Ā· Monetization Ā· Best chart rank Ā· Devices Ā· Requires iOS
Both are free to download. Mya sells 2 in-app purchases, starting at $4.99 per month and Within sells 1 in-app purchase, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.
| Parameter | Mya | Within |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 weeks | ā |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Devices | iPhone, iPod ā better | iPhone |
| Requires iOS | 15.1 ā better | 17.0 |
| Further details ā not scored | ||
| Size | 62 MB | 3 MB |
| Age rating | 12+ | 17+ |
| Developer | Joseph Brockbank | Milivoje Skiljevic |
In-app purchases
Mya
- Mya Premium$4.991 Month
- Mya Premium Yearly$29.991 Year
Within
- Monthly$2.991 Month









