Comparison

Just vs Calindex

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

Head to head
About

Just

This app provides gentle, repeating reminders designed to be less intrusive and more effective for individuals with ADHD and executive dysfunction. It offers flexible triggering options, a linked to-do list, and a habit tracker to help manage tasks and goals.

Highlights
  • Gentle, repeating reminders
  • Customizable trigger times and locations
  • Linked to-do list functionality
  • Habit tracker with insights
  • ADHD and executive dysfunction friendly design
  • Optional task sharing with trusted contacts
Features
Read full description

I created Just-A-Sec because other reminder apps don't work for me. If I get a reminder when I can’t get to it right away, I’ll stop it and then I’ll forget. Having to stop what I’m doing to snooze an alarm over and over is irritating, so I stop it and then I forget. So, I made my own solution. Just-A-Sec gives you gentle reminders that repeat, but aren't intrusive. Once a reminder starts, it will send a simple ping on an interval that you choose until you tell it to stop. That's it. I've designed this app with a focus on being ADHD- and Executive Dysfunction-friendly by: • Reducing friction like extra button presses. • Allowing customization for lots of flexibility, while keeping the basic app simple and easy to use right away. • Providing options for when and where reminders trigger– right away, at a specific time and date, or even when you reach a particular location. • Offloading the mental burden of having to keep your tasks in mind all day so you can focus on what you're doing right now. I’ve also expanded the app to include a few more features that have been helpful to me, like a to-do list that is linkable to your reminders, and a habit tracker to keep track of goals and provide insights. With your permission, others (like your partner, family member, or a healthcare team member) can suggest tasks to add to your to-do list, while keeping your list only visible to you. I am very committed to data privacy. I am not interested in storing or selling your data. I just want people to be able to benefit from this app. I hope it helps you as much as it has helped me. PERMISSIONS EXPLAINED: • Notification permissions...well yeah, it's a reminder app. • Device ID data is only used for automatic crash reporting, and for opt-in push notifications for the to-do sharing system. • No actual personal information is collected beyond a simple device identifier that changes any time you uninstall/reinstall the app. • Camera is used only for scanning QR codes. Camera input NEVER leaves your device. • Microphone used for voice commands and voice clips to attach to reminders. Microphone input NEVER leaves your device. • Location services are used to register geofences for location-based reminders. Location data NEVER leaves your device. • Background execution is unfortunately REQUIRED for this app to work properly due to limitations of iOS itself. The app will not run in the background all the time, but it needs to occasionally top-up its reminders if you don't open the app directly very often!

About

Calindex

Combines Apple Calendar and Reminders into a single, chronological timeline. Add events and reminders using natural language, and convert notes into actionable plans. Offers widgets and on-device insights for a private, streamlined schedule.

Highlights
  • Chronological timeline view
  • Natural language event/reminder creation
  • Integrated Apple Calendar & Reminders
  • Note to event conversion
  • Home/Lock Screen widgets
  • On-device insights
  • Private by design
Features
Read full description

See the days ahead as one exact, chronological list—not a grid you have to decode. Calindex brings Apple Calendar and Apple Reminders together in one calm timeline. Open the app, see the dates that actually contain something, and know what comes next. KNOW EXACTLY WHAT’S AHEAD Browse Today, Tomorrow, or any range through 1 year. Move naturally into monthly groups, jump to a date, search your schedule, filter calendars and reminder lists, and collapse sections when you want a quieter overview. Choose comfortable or compact rows without losing the date. ADD PLANS IN PLAIN ENGLISH Type a natural phrase to create an event or reminder. Calindex shows the title, date, time, duration, and calendar or reminder list before anything is saved. Clear phrases can be added immediately; uncertain details go to review first. CALENDAR + REMINDERS, TOGETHER See timed reminders beside events, dated reminders in the all-day area, and undated reminders in To Schedule. Create, reschedule, edit, complete, or delete reminders from the agenda while Apple Reminders remains the source of truth. TURN MESSY NOTES INTO REAL EVENTS Paste or scan a message, email, itinerary, or rough schedule. Calindex identifies possible events on device, separates ready items from uncertain ones, and lets you review every date, time, location, and all-day plan before adding anything to Apple Calendar. KEEP WHAT’S NEXT IN VIEW Home Screen and Lock Screen widgets surface upcoming events and reminders. Pin the next event as a Live Activity, or check today and capture a reminder from the Apple Watch app. Watch complications keep the next plan close without opening your phone. SUMMARIES ON YOUR TIME Daily Summary and Tomorrow Preview can each be off or scheduled for the exact time you choose. Set a default event duration from 15 minutes through 3 hours, then adjust any individual plan as needed. USEFUL DETAILS, NOT PRODUCTIVITY SCORES Join supported video meetings, open directions, share plans, edit writable events, add Apple Calendar alerts, and reuse recent-event suggestions. Optional on-device insights show busy time, open gaps, short buffers, and conflicts without judging or replanning your day. PRIVATE BY DESIGN No Calindex account. No advertising. No tracking. No analytics server. Calendar data, reminder data, note processing, notifications, and optional import history stay on your device. Calindex is not another calendar to maintain. It is a clearer way to use the Apple Calendar and Reminders you already have.

Screenshots

Just3 screens
Calindex4 screens

Verdict

The call

The clearest difference is device support: Calindex at 4 against Just's 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. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for Just against 5.0 for Calindex. Both are backed by a comparable volume of ratings — 2 and 2 respectively.

UpkeepUpdate frequency

Just ships an update every 4 days, Calindex every 3 days. The most recent releases landed on October 5, 2026 and October 9, 2026 respectively.

Scorecard1 real difference · 9 level
Just versus Calindex: the parameters behind the verdict, then further details
ParameterJustCalindex
PriceFreeFree
Rating5.0 (2 ratings)5.0 (2 ratings)
Positive reviews100.0% of reviews—
Number of ratings22
Update frequencyEvery 4 daysEvery 3 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPadiPhone, iPad, Mac, Apple Watch — better
Requires iOS17.017.0
Further details — not scored
Size13 MB9 MB
Age rating4+4+
DeveloperTed NewmanManafold LLC

Customer experience

Just

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Calindex

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Just

No in-app purchases

None

Calindex

No in-app purchases

Questions

Is Just free?
Just is free to download, with no in-app purchases.
Is Calindex free?
Calindex is free to download, with no in-app purchases.
Which has better reviews, Just or Calindex?
Just and Calindex are both rated 5.0 out of 5 on the App Store, from 2 and 2 ratings respectively.
Do Just or Calindex have ads?
Neither Just nor Calindex shows ads.
Which is updated more often, Just or Calindex?
Just ships an update every 4 days, and Calindex every 3 days. Most recently, Just was updated on October 5, 2026 and Calindex on October 9, 2026.

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