Hum Memo vs Sonder Calendar
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Hum Memo
This voice-first productivity app transforms spoken thoughts, conversations, and meetings into organized notes, actionable tasks, and calendar events. It offers advanced features like multilingual transcription, speaker separation, and AI-powered insights, all while prioritizing user privacy.
- Voice note and meeting recording
- Speech-to-text transcription
- Task and event extraction
- Multilingual and speaker recognition
- Searchable notes and folders
- Calendar integration
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Think out loud. Leave with a plan. Turn a passing thought, a meeting recap, or a brain dump into organized notes and clear next steps. Hum Memo brings voice capture to your iPhone and Apple Watch. CAPTURE THE MOMENT • Speak naturally. Turn recordings into transcripts, summaries, titles, and tags. • Record from your wrist. Save a voice note on Apple Watch and send it to your paired iPhone for processing. • Type when talking isn’t convenient, or save supported links alongside your notes. • Record in multiple languages, including conversations that switch between them. MAKE YOUR WORDS USEFUL • Find the next step. Hum Memo suggests tasks and calendar events from your notes for you to review and add. • Keep things organized. Search your notes and group them into folders. • Make it yours. Edit titles, summaries, and transcripts. • Take your work with you. Export notes to Notion or Obsidian, send tasks to Reminders, Todoist, or Things, and add events to your calendar. GO DEEPER WITH HUM MAX • Ask questions across your notes, with references back to the source. • Explore connections between people and topics. • Recognize enrolled speakers in your recordings. YOUR NOTES STAY YOURS No ads. Your content is never sold or used for advertising. Cloud features process recordings and text through our service providers. You can delete your account in Settings; see our Privacy Policy for retention details. MEMBERSHIP Hum Memo requires an account and an active Hum Pro or Hum Max subscription. Monthly and yearly plans are available, with free trials for eligible customers. Features and monthly usage allowances vary by plan. Current prices, allowances, and available trial offers are shown in the app before purchase. The Apple Watch companion requires Hum Memo on your paired iPhone. Subscriptions renew automatically unless canceled. Manage or cancel your subscription in your Apple Account settings. Privacy Policy: https://hummemo.com/privacy.html Terms of Use: https://hummemo.com/terms.html
Sonder Calendar
This app simplifies calendar management by allowing users to input events via voice or text. It categorizes your schedule into seven distinct colors and offers features like goal setting and friend invitations without social media feeds.
- Voice and text event input
- Seven color-coded categories
- Goal setting and tracking
- Repeating event scheduling
- Friend invitations for events
- Shared joint calendars
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How many buttons do you press to put one thing on your calendar? Sonder is one. You talk, it listens, and your day comes back as color. Say "gym at seven, class nine to noon, work one to five, dinner with Gavin at six" and all four land on the right days at the right times, sorted into seven colors. No forms. No time pickers. No dragging blocks around a grid. SEVEN COLORS Every hour becomes one of seven things: Work — job, class, studying, meetings Health — gym, sports, doctor, rest that actually restores you Leisure — movies, gaming, going out, hobbies Chores — errands, laundry, cooking, admin People — family, partner, close friends Wasted time — doomscrolling, aimless phone time Sleep & transit — sleeping, commuting, driving Most calendars tell you what is next. Sonder shows you where it all went. BUILT FOR A SEMESTER Repeating classes and shifts are one sentence. "Every Monday and Wednesday, chem nine to ten thirty, until December tenth." Say it once and it fills the whole term. Move it later by talking, not by tapping through a repeat menu. ASK IT THINGS "When is my dentist appointment?" "What do I have Friday?" It answers instead of adding something. SEE THE SHAPE OF YOUR WEEK Month, week, day and year, all in color. A week of green with no blue in it looks like exactly what it is. GOALS, NEVER STREAKS Set how many hours a week you want on each category and Sonder shows how far ahead or behind you are, plus how many hours you have not promised to anything yet. There are no streaks. Streaks make people log what looks good instead of what happened, and then the numbers are fiction. The data is the point, so it stays honest. OPTIMIZE One tap names what you are furthest behind on this week and where it fits today. It is arithmetic on the calendar you already have, so it costs nothing and works with no signal. FRIENDS, WITHOUT A FEED Add friends, invite them to a specific event, and see how many hours you have spent together. There is no feed, no follower count, and nothing to scroll. Your calendar is not visible to your friends. They see an event only when you send them that one event by name. A JOINT CALENDAR Share one calendar with one person — a partner, a roommate, whoever you actually plan around. You both write to it, you both see it, nobody else does. Your own calendar stays yours. YOUR WORDS STAY YOURS What you say goes into your own backup, which only you can read. Sonder does not sell your data and runs no third-party analytics. Nothing you write is shown to anyone unless you deliberately send it to them. FREE The whole calendar, friends, invites and every count. Voice and typing share a limit of five requests a day. MEMBER $3.99 a month, or $29.99 a year. The names behind the counts: who viewed your profile, whose top friends you are in, and your own, by hours together. Plus twenty requests a day instead of five. Payment is charged to your Apple account at confirmation of purchase. The subscription renews automatically unless auto-renew is turned off at least 24 hours before the end of the current period. You can manage or cancel it any time in your Apple account settings. Terms of Use: https://sondercalendar.com/terms Privacy Policy: https://sondercalendar.com/privacy
Screenshots
Verdict
The clearest difference is rating: Hum Memo at 5.0 against Sonder Calendar's 4.5. Sonder Calendar's advantage is in-app purchases (none vs 4) and iOS requirement (15.1 vs 26.2). On price, review sentiment, 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
Both are free to download. Hum Memo sells 4 in-app purchases, starting at $12.99 per month. Sonder Calendar asks for nothing beyond the download.
Hum Memo holds the better App Store score, 5.0 against 4.5. Both are backed by a comparable volume of ratings — 7 and 4 respectively. Written reviews split almost evenly too, at 100% and 100% positive.
Hum Memo ships an update weekly, Sonder Calendar every 4 days. Both last shipped on October 24, 2026.
| Parameter | Hum Memo | Sonder Calendar |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (7 ratings) — better | 4.5 (4 ratings) |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | 7 — better | 4 |
| Update frequency | Weekly | Every 4 days — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, Apple Watch | iPhone, iPod |
| Requires iOS | 26.2 | 15.1 — better |
| Further details — not scored | ||
| Size | 771 MB | 38 MB |
| Age rating | 4+ | 4+ |
| Developer | JZMB GmbH | Owen Lombardi |
Customer experience
Hum Memo
Sonder Calendar
In-app purchases
Hum Memo
- Hum Memo Pro7 Days trial$12.991 Month
- Hum Memo Max7 Days trial$19.991 Month
- Hum Memo Pro7 Days trial$89.991 Year
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- Hum Memo Max7 Days trial$149.991 Year
Sonder Calendar
No in-app purchases









