Comparison

Sumi vs ECHO

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

Head to head
About

Sumi

This app helps you reduce phone usage by setting timers for breaks. It alerts you if you touch or move your device during the break, aiming to boost productivity and mental well-being.

Highlights
  • Timed phone breaks
  • Movement alerts
  • Productivity enhancement
  • Mental health improvement
  • Simple interface
Features
Read full description

The most beautiful thing an app can do is get out of your way. Sumi sits quietly on cream paper, holds your attention for an hour, and asks for nothing back. Set a length. Put your phone face down. Pick it up before the time is done and the session breaks — not as a punishment, but as a commitment kept. No ads. No notifications. No streaks-as-slot-machines. No weekly subscription trap. Just deep work, and the quiet record of the hours you've given it. — THE RITUAL — Set an intention and a length. Put the phone down. Sumi keeps watch: lift it, or leave the app, and the session ends. When the time is held, the line completes, your lifetime hours grow, and the session is logged. Silent while you work. Quietly rewarding when you finish. — A CALM LEDGER, NOT A GAME — The number that only goes up: your lifetime hours focused. A streak, if you want one. A week that fills, a line that climbs. No characters to feed, no points, no dark patterns. Progress you can feel, with nothing engineered to hook you. — MADE FOR DEEP-WORK PEOPLE — For writers, developers, designers, students of a craft — anyone who already romanticizes focus and resents apps built to fracture it. Graphite and cream. Monospace. Paper grain. A single calligraphic mark. — PAY ONCE — Your focus shouldn't be a recurring charge. Sumi is free to use, with an optional one-time Lifetime unlock (or a subscription, if you prefer) for custom lengths, full history and trends, themes, and session intentions. Put the phone down. Pick the work up. ——— Privacy Policy: https://dayonefoundry.com/sumi/privacy Terms of Use (EULA): https://dayonefoundry.com/sumi/terms

About

ECHO

Features
Read full description

"Find Resonance in Your Solitary Exploration." Psychotherapy is often a solitary expedition. While human supervision is irreplaceable, an objective, rational reflection right after a session is invaluable. ECHO is not a replacement for your clinical supervisor; it is an objective AI mirror designed specifically for licensed psychotherapists, counselors, and social workers. By utilizing evidence-based supervision frameworks, ECHO analyzes your session records to help you identify blind spots, analyze relationship dynamics, and manage countertransference. [ CORE FEATURES ] Evidence-Based Reflections: Get multi-dimensional feedback on therapeutic techniques, working alliance, and ethical boundaries. Transference & Countertransference: AI helps capture subtle emotional cues to assist in your self-awareness and professional growth. Deep E2E Privacy (Zero-Knowledge Architecture): Confidentiality is your baseline, and ours too. Your session notes are strictly E2E encrypted (AES-256) and synced ONLY via your personal Apple iCloud. We utilize a Zero-Knowledge Architecture, meaning Apple and ECHO developers cannot access, read, or store your case data. Apple Ecosystem Sync: Seamlessly and securely sync your records and reports across your iPhone, iPad, and Mac. PDF Export: Generate clean, structured supervision companion reports to discuss later in your peer or individual supervision. ECHO is a tool strictly for mental health professionals to aid in case conceptualization and self-reflection. Disclaimer: ECHO is not intended for patient use. It is not a medical device and does not provide clinical mental health diagnoses or treatment to the public. Privacy Policy: https://echo.gifts/privacy/ Terms of Use: https://echo.gifts/terms/

Screenshots

Sumi4 screens
ECHO4 screens

Verdict

The call

The clearest difference is update cadence: ECHO at every 2 days against Sumi's every 5 days. On price, ads, in-app purchases 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Sumi sells 3 in-app purchases, starting at $5.99 per month and ECHO sells 4 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Sumi ships an update every 5 days, ECHO every 2 days. The most recent releases landed on September 20, 2026 and September 16, 2026 respectively.

Scorecard1 real difference · 9 level
Sumi versus ECHO: the parameters behind the verdict, then further details
ParameterSumiECHO
PriceFreeFree
Rating3.0 (2 ratings) — better—
Positive reviews0.0% of reviews—
Number of ratings2 — better—
Update frequencyEvery 5 daysEvery 2 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree—
DevicesiPhoneiPhone, iPad — better
Requires iOS16.0 — better17.0
Further details — not scored
Size10 MB16 MB
Age rating4+4+
DeveloperDavid ParkLIANG SHAN

In-app purchases

3 purchases

Sumi

Subscriptions2
  • Sumi Pro Monthly$5.991 Month
  • Sumi Pro Annual7 Days trial$24.991 Year
One-time1
  • Sumi Pro Lifetime$49.99
4 purchases

ECHO

One-time4
  • 10 Credits$12.99
  • 50 Credits$51.99
  • 100 Credits$90.99
Show 1 more
  • ECHO License$149.00

Questions

Is Sumi free?
Sumi is free to download, with in-app purchases available.
Is ECHO free?
ECHO is free to download, with in-app purchases available.
Do Sumi or ECHO have ads?
Neither Sumi nor ECHO shows ads.
Which is updated more often, Sumi or ECHO?
Sumi ships an update every 5 days, and ECHO every 2 days. Most recently, Sumi was updated on September 20, 2026 and ECHO on September 16, 2026.

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