Calendoc vs Piece Day
Price, ratings, monetisation and update history for both apps, side by side ā with what reviewers say about each.
Calendoc
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ā Don't merge. Line them up. Work, side gigs, family, fandom. The more calendars you keep, the harder they are to read when everything is mixed into one timeline. You end up chasing colors and working out which event belongs to which role. Switching calendars hides conflicts on the side you cannot see. Calendoc gives each role its own vertical column. The free version lets you compare up to four columns on one screen, keeping work and personal schedules separate while making double-bookings easy to spot. ā Built for ⢠Using both work and personal calendars ⢠Moving between several schedules for side gigs or multiple jobs ⢠Freelancing with a separate calendar for each client ⢠Keeping concerts, events, and livestreams in a dedicated fan calendar ⢠Wanting work and private life unmixed, but visible at the same time ā Included for free UP TO FOUR PARALLEL COLUMNS ⢠Show calendars registered on your iPhone, including iCloud, Google, and Exchange, as side-by-side columns ⢠Day and week views with visibility controls for each group ⢠Arrange column order and choose which calendars appear in each group CORE CALENDAR TOOLS ⢠Create, edit, and delete events, including recurring events ⢠Drag to move events or change their duration ⢠Copy and paste, plus Undo ⢠Search across multiple calendars PLAN YOUR DAY ⢠Place Reminders on your timeline as time blocks ⢠See travel time ⢠Home Screen widgets ⢠Dark mode and multiple languages Core calendar features and up to four parallel columns stay free. There are no ads. ā When you need more A one-time upgrade within this free app unlocks Pro features: five or more columns, Google working locations, RSVP and Google Tasks actions, event templates, and natural-language entry. There is no subscription, and a 14-day free trial is available. ā Privacy Your event details are not sent to the developer. Connections to external calendar services go directly from your device to the provider. Questions or ideas? Reach out any time through the support page. Calendoc is built by one person, and every message gets read.
Piece Day
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Piece Day ā a habit tracker that keeps your day in gentle little pieces We took the paper habit trackers from stationery-shop diaries and put them on your iPhone, unchanged. No sign-up, no elaborate setup. One tap marks today. ā Four trackers, one app Ā· Monthly ā fill the calendar with green checks and see a whole month at a glance Ā· Weekly ā plan this week's goals day by day, Monday through Sunday Ā· Time Table ā colour in your day on a 24-hour dial Ā· Bucket List ā tick off the things you want to do someday, one circle at a time ā Made for you if Ā· You want to get past day three and build something that lasts Ā· You love the feel of paper diaries and planners Ā· You've been looking for a tracker with nothing extra in it ā Private by design Ā· No login, no server ā everything stays on your iPhone Ā· No ads, no tracking A pink dinosaur and a little black cat are here to keep you company. Take today one piece at a time.
Screenshots
Verdict
The clearest difference is in-app purchases: Piece Day at none against Calendoc's 2. Calendoc's advantage is device support (3 vs 1). On price, update cadence, ads and iOS requirement 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. Calendoc sells 2 one-off in-app purchases. Piece Day asks for nothing beyond the download.
Calendoc ships an update weekly, Piece Day every 11 days. The most recent releases landed on November 6, 2026 and October 31, 2026 respectively.
| Parameter | Calendoc | Piece Day |
|---|---|---|
| Price | Free | Free |
| Positive reviews | ā | 100.0% of reviews |
| Update frequency | Weekly ā better | Every 11 days |
| Ads | No | No |
| In-app purchases | Yes | No ā better |
| Devices | iPhone, iPad, Apple Watch ā better | iPhone |
| Requires iOS | 18.0 | 17.0 ā better |
| Further details ā not scored | ||
| Size | 29 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Toshiki Izumi | Warm Tech Company |
In-app purchases
Calendoc
- 14-day TrialFree
- Calendoc Pro$19.99
Piece Day
No in-app purchases









