Comparison

Ember vs Chart35

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Ember

This app offers a private daily wellness journal designed for women experiencing perimenopause. It helps users track mood, energy, sleep, symptoms, and personal patterns with simple daily check-ins and deeper reflection tools.

Highlights
  • Daily wellness tracking
  • Symptom logging
  • Mood and energy tracking
  • Sleep quality monitoring
  • Private journaling
  • Pattern analysis
  • Offline functionality
Features
Read full description

Ember is a private daily wellness journal for women navigating perimenopause, mood changes, disrupted sleep, shifting energy, symptoms, and the quiet questions that can come with midlife. In about a minute a day, Ember helps you log how you feel, notice personal patterns, and build a calm record you can return to over time. No pressure. No ads. No social feed. Just a warm place to reflect. WHAT YOU CAN TRACK Use Ember to keep a gentle daily record of: • Mood, energy, and sleep quality • Hot flashes, night sweats, brain fog, and physical discomfort • Anxiety, irritability, and social battery • Cycle context, food and drink context, and custom symptoms • Private notes, journal prompts, and morning or night reflections A DAILY RITUAL, NOT HOMEWORK Choose a quick Daily Check-In or a slower Guided Check-In. Ember is built to feel simple enough for tired days and thoughtful enough for the days when you want to understand more. Your free experience includes daily tracking, journaling, calendar history, weekly summaries, custom symptoms, cycle context, learning tools, glossary access, and reflection prompts. PATTERNS WITHOUT PANIC Over time, Ember helps your self-reported history become easier to review. You can look back at your mood, sleep, energy, symptoms, notes, and reflections with more clarity instead of relying on memory alone. Ember Premium unlocks deeper pattern and reflection tools, including Monthly Pattern Reports, Body Battery, Pattern Map, Ask Ember, My Mirror, Weekly Letters, Doctor Visit Companion, Doctor Export, guided programs, and long-term archives. Premium is designed for women who want a fuller picture of their rhythm over weeks and months, not just a place to log today. PRIVATE BY DESIGN Your wellness history is personal. Ember is built around that belief. • Works offline • No account needed to begin • Data is stored locally by default • Optional cloud backup if you choose it • No ads • No social feed IMPORTANT NOTE Ember is a wellness journal and personal pattern-awareness tool. It is not a medical device, diagnostic tool, therapy product, or replacement for professional medical advice. Always speak with a qualified healthcare professional about medical concerns. Meet Ember. Start noticing your rhythm, one private day at a time. Terms of Use: https://emberwellnessjournal.com/terms Privacy Policy: https://emberwellnessjournal.com/privacy

About

Chart35

Features
Read full description

Chart35 is a private fertility-charting app for the Creighton Model FertilityCare System (CrMS). Record each day's observation, see your color-coded stamp and chart, and keep your record on your own device. YOUR DATA STAYS WITH YOU Chart35 is offline-first. Your observations live on your device and the app works with no connection. Account sync is optional. When you turn it on, your records are encrypted on your device before they are uploaded, so the server stores data it cannot read. CHART THE WAY YOU WERE TAUGHT - Color-coded stamps: red, green, white, and yellow, matching standard CrMS charting. - Observation codes for bleeding, mucus, and frequency, built from the codes you already use. - Peak Day and post-peak count tracking. - Chart and calendar views, with Normal, Compact, and Trend zoom to see one cycle or many at a glance. - Insights: cycle count, average cycle length, and a cycle-length trend at a glance. SHARE WITH YOUR PRACTITIONER Generate a read-only link to your chart for your FertilityCare Practitioner. The link is encrypted so the server cannot read the shared data, and you can revoke it at any time. BUILT FOR REVIEW Your notes stay private and are never included in a shared chart. You decide what syncs and what is shared. You can delete your account and data at any time. ABOUT THE METHOD Chart35 is a charting and record-keeping tool. It is not medical advice and does not interpret your fertility for you. The Creighton Model is learned with a certified FertilityCare Practitioner. Yellow-stamp (Base Infertile Pattern) use in particular should only follow a baseline established with your practitioner. To find a practitioner, see your instructor or a FertilityCare center. Chart35 is independent and is not affiliated with or endorsed by the Saint Paul VI Institute or the creators of the Creighton Model System. "Creighton Model" and "FertilityCare" refer to the method and are used to describe what the app charts.

Screenshots

Ember4 screens
Chart354 screens

Verdict

The call

The clearest difference is in-app purchases: Chart35 at none against Ember's 5. Chart35 also leads on device support (4 vs 2). On price, rating, ratings volume and update cadence 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Ember sells 5 in-app purchases, starting at $4.99 per month. Chart35 asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for Ember against 5.0 for Chart35. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

UpkeepUpdate frequency

Ember ships an update every 9 days, Chart35 every 6 days. The most recent releases landed on October 7, 2026 and October 24, 2026 respectively.

Scorecard2 real differences · 8 level
Ember versus Chart35: the parameters behind the verdict, then further details
ParameterEmberChart35
PriceFreeFree
Rating5.0 (1 ratings)5.0 (1 ratings)
Positive reviews100.0% of reviews—
Number of ratings11
Update frequencyEvery 9 daysEvery 6 days — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFreemium—
DevicesiPhone, iPodiPhone, iPad, iPod, Apple Watch — better
Requires iOS15.115.0 — better
Further details — not scored
Size41 MB5 MB
Age rating4+4+
DeveloperMuhsin Mert TEKINStephens Page LLC

In-app purchases

5 purchases

Ember

Subscriptions2
  • Ember Premium Monthly$4.991 Month
  • Ember Premium Annual$49.991 Year
One-time3
  • Ember Premium Gift$49.99
  • Ember Gift$49.99
  • Ember Lifetime$99.99
None

Chart35

No in-app purchases

Questions

Is Ember free?
Ember is free to download, with in-app purchases available.
Is Chart35 free?
Chart35 is free to download, with no in-app purchases.
Which has better reviews, Ember or Chart35?
Ember and Chart35 are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.
Do Ember or Chart35 have ads?
Neither Ember nor Chart35 shows ads.
Which is updated more often, Ember or Chart35?
Ember ships an update every 9 days, and Chart35 every 6 days. Most recently, Ember was updated on October 7, 2026 and Chart35 on October 24, 2026.

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