Comparison

One Calendar vs SID3KICK

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

Head to head
About

One Calendar

Consolidate all your digital calendars into a single, easy-to-read view. Manage appointments, events, and birthdays from various providers like Google, Outlook, iCloud, and more, all within one application.

Highlights
  • Integrates multiple calendar providers
  • Easy-to-read overview
  • Manage appointments and events
  • View birthdays
  • Cross-platform availability
Features
Read full description

The most popular app to view all your calendars like Google, Live, Outlook, iCloud, Exchange, Office365, Yahoo, Nextcloud, Synology, GMX, Mailbox.org, ownCloud and more. OneCalendar integrates all your calendars into an easy-to-read overview. View and manage all your appointments, events and birthdays. OneCalendar is available on all platforms.

About

SID3KICK

Features
Read full description

SID3KICK records what you say out loud, transcribes it, and turns it into notes you can search and question later. Speech recognition runs on the device. Recordings, transcripts and summaries are stored on the device. There is no account, no sign-in, and no server of ours involved. HOW IT WORKS Tap the mic on Home and talk. SID3KICK captures the audio, transcribes it, writes a summary, pulls out the action items it heard, and flags dates and appointments so you can add them to your calendar in one tap. SIX TABS Home: a record button that pulses with the level of your voice, an elapsed-time readout, and your latest captures. Ask: put a question to everything you have recorded. Ask what you said about the lease last week and it answers across every stored transcript and summary, using the date, time and place each capture was tagged with. To-dos: action items pulled from what was actually said, split into open and done, plus anything you add by hand. Tap one to jump back to the recording it came from. Days: a written digest of a day with that day's action items appended as a checklist, generated when you ask for it. Recordings: every capture with status, duration and playback. Open one for the transcript, the summary, the events it found, the place it was recorded, and the original audio. Settings: all of the above, spelled out in plain language. TRANSCRIPTION, YOUR CHOICE On device: Apple's speech recognizer with on-device recognition forced on. No key, no account, no network, and the audio never leaves the phone. Cloud: OpenAI speech-to-text with your own API key, when you want that accuracy instead. AI: YOUR PROVIDER, YOUR KEY Summaries, action items, event extraction, daily digests and the Ask tab run through whichever provider you set in Settings: OpenAI, Anthropic, an Ollama or LM Studio instance on your own network, or any endpoint that speaks the OpenAI chat-completions API. You paste your own key or base URL. Nothing is sent to any of them until you configure one, and pointing the app at a local model keeps every byte inside your network. AI usage is billed to you by the provider you choose. SID3KICK logs every call it makes: provider, model, input and output tokens, audio seconds and the computed cost, with all-time, today and this-month totals, a price table you can edit, and $0 against local engines. WHERE YOUR DATA GOES No accounts. No analytics. No crash reporting. No ads. No tracking SDKs. There is no SID3KICK server for your data to sit on. Apart from turning coordinates into a place name, which asks the system geocoder and only when location tagging is on, every network destination is one you typed into Settings yourself. Location tagging starts in its low-power mode, which keeps the place name while blurring coordinates to roughly a kilometre, and you can switch it off entirely. MAKE IT YOURS Dark and light, each with five accent colours, plus a retro sci-fi console theme that keeps its own signature palette. Rename the assistant and the new name is used throughout the app. The layout adapts from iPhone SE to iPad and holds together at 200% text size. HONEST LIMITS Summaries, digests and the Ask tab need an AI provider configured. Recording, playback and on-device transcription work with nothing configured at all. Recording laws differ by place. Some require every participant's consent, others only yours. You are responsible for recording lawfully wherever you are. Privacy policy: https://sid3kick.app/privacy/ Terms of use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ sid3kick.app - by codedatda.casa

Screenshots

One Calendar4 screens
SID3KICK4 screens

Verdict

The call

The clearest difference is in-app purchases: SID3KICK at none against One Calendar's 1. SID3KICK also leads on update cadence (every 3 days vs fortnightly). One Calendar's advantage is device support (4 vs 2). On price, ads and iOS requirement 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. One Calendar sells 1 one-off in-app purchase. SID3KICK asks for nothing beyond the download.

UpkeepUpdate frequency

One Calendar ships an update fortnightly, SID3KICK every 3 days. The most recent releases landed on October 24, 2026 and October 11, 2026 respectively.

Scorecard3 real differences · 7 level
One Calendar versus SID3KICK: the parameters behind the verdict, then further details
ParameterOne CalendarSID3KICK
PriceFreeFree
Rating4.8 (21K ratings) — better—
Positive reviews80.7% of reviews—
Number of ratings21K — better—
Update frequencyFortnightlyEvery 3 days — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod, Mac — betteriPhone, iPad
Requires iOS15.0 — better16.0
Further details — not scored
Size89 MB13 MB
Age rating12+4+
DeveloperCode SparkCodedatda.casa

Bugs and requests

One Calendar

Reported bugs

5 issues
  • Sync errors
  • Unresponsive buttons
  • Incorrect time zone display
  • Duplicate events
  • Inability to delete future occurrences of recurring events

Requested features

6 requests
  • Multiple reminders for events
  • Ability to edit recurring events
  • Option to change event calendar after creation
  • Printing support
  • More customization options
Show 1 more
  • Widgets for better visibility

SID3KICK

Not enough reviews yet to summarise bugs or requests.

In-app purchases

1 purchases

One Calendar

One-time1
  • OneCalendar premium$5.99
None

SID3KICK

No in-app purchases

Questions

Is One Calendar free?
One Calendar is free to download, with in-app purchases available.
Is SID3KICK free?
SID3KICK is free to download, with no in-app purchases.
Do One Calendar or SID3KICK have ads?
Neither One Calendar nor SID3KICK shows ads.
Which is updated more often, One Calendar or SID3KICK?
One Calendar ships an update fortnightly, and SID3KICK every 3 days. Most recently, One Calendar was updated on October 24, 2026 and SID3KICK on October 11, 2026.

Other comparisons