Calla vs Ember
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Calla
Read full descriptionHide full description
Calla is a private perimenopause and menopause tracker for iPhone. Keep a daily diary of symptoms, hot flashes, sleep and hormone replacement therapy (HRT). Calla Pro adds insights and PDF reports for your next medical appointment. MADE FOR THIS STAGE • 25+ symptoms with severity, plus your own custom symptoms and notes • One-tap hot flash log with time of day, night sweats and sleep • Works whether your periods are regular, irregular or gone – including after a hysterectomy or with an IUD • Tracks the gap since your last period and flags bleeding after 12 months HRT, PROPERLY • Patches, gels, sprays, tablets, pessaries, testosterone and more • Daily, twice-weekly, weekly and cyclical schedules with reminders that respect Focus modes • Log dose changes and see how your symptoms compared before and after SEE THE PATTERNS • Calendar heatmap and 7/30/90-day trends • Which triggers (alcohol, caffeine, stress, poor sleep) go with worse days • Adherence vs symptoms, hot flash frequency by time of day BRING PROOF TO YOUR APPOINTMENT • PDF report with charts, your HRT regimen and adherence, bleeding pattern, labs and your questions • Share from the app or print PRIVATE BY DESIGN • No account, no sign-up, no email • Data stays on your iPhone; optional iCloud backup and full export (CSV, JSON, PDF) • Optional Face ID lock • Writes symptoms to Apple Health and imports your cycle history Daily logging, medication reminders and JSON/CSV exports are available without a subscription. Calla Pro unlocks Insights and creation of PDF reports. Calla Pro is available as a subscription: $39.99/year after a 7-day free trial, or $7.99/month. Payment is charged to your Apple ID account. Subscriptions renew automatically unless cancelled at least 24 hours before the end of the current period. Manage or cancel in Settings › Apple ID › Subscriptions. Calla is a tracking tool, not a medical device. It does not diagnose or treat conditions. Always talk to your healthcare provider about symptoms and treatment. Privacy Policy: https://callatracker.app/privacy Terms of Use: https://callatracker.app/terms Support: https://callatracker.app/support
Ember
Read full descriptionHide full description
Ember is a perimenopause symptom tracker built for this transition, not adapted from a period tracker. A minute a day, and a report your doctor can actually use. A DAILY CHECK-IN, BUILT FOR PERIMENOPAUSE Tap the symptoms that showed up today, from hot flashes and night sweats to brain fog, low mood and joint aches, and rate how strong they were. Add sleep, habits, bleeding and HRT. It takes about a minute. There are no fertility prompts and no cycle predictions, and a missed day breaks nothing. A REPORT FOR YOUR APPOINTMENT Ember turns what you log into a clear summary for your doctor or specialist: which symptoms came up most, how intense they were, and your monthly check-in score. Share it as a PDF, print it, or show it on your phone. SEE HOW THINGS CHANGE Trends shows each symptom over the past week, month or three months. Once a month, a short check-in asks how much each symptom has bothered you, and your score shows which way things are moving. HRT REMINDERS ON YOUR SCHEDULE If you take HRT, set a quiet reminder on the days and at the time that suit you. WORKS WITH APPLE HEALTH If you choose, Ember fills in last night's sleep and the day's workouts from Apple Health. It reads them on your phone and never writes to Health. WHAT YOU LOG STAYS ON YOUR PHONE There is no account to create and no Ember server holding your logs. They leave your phone only when you share a report or a backup yourself. Ember sends anonymous usage counts and crash reports, which never include anything you log. ORGANIZED, NEVER DIAGNOSED Ember doesn't diagnose, explain causes or give medical advice. It organizes what you log, so you and your doctor can decide what it means. SUBSCRIPTION Ember is $6.99 a month, or $49.99 a year with a 7-day free trial. Payment is taken through your Apple ID. Subscriptions renew automatically unless canceled at least 24 hours before the end of the current period, and you can manage or cancel them in your App Store account settings. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://contactemberapp.com/privacy
Screenshots
Verdict
Calla and Ember are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
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. Calla sells 2 in-app purchases, starting at $7.99 per month and Ember sells 3 in-app purchases, starting at $6.99 per month. Whichever you choose, the download price is not the number that matters.
| Parameter | Calla | Ember |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 4 days | — |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Devices | iPhone | iPhone |
| Requires iOS | 16.4 | 16.4 |
| Further details — not scored | ||
| Size | 69 MB | 65 MB |
| Age rating | 12+ | 12+ |
| Developer | Arman Malkhasyan | MASSIMO JAN BUONFRATE |
In-app purchases
Calla
- Calla Pro - Monthly$7.991 Month
- Calla Pro - Yearly7 Days trial$39.991 Year
Ember
- Monthly$6.991 Month
- Annual7 Days trial$49.991 Year
- Ember Lifetime$500.00









