Comparison

iApp ChindaGo vs Sundial Time Marks

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

Head to head
About

iApp ChindaGo

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Requires iPhone 12 or newer. Models run on the device's graphics processor, and earlier iPhones cannot run them. ChindaGo is your daily life & emergency AI companion — an on-device AI assistant from iApp Technology. Answers are generated on your iPhone, so your conversations, your files and your questions do not leave the device. • Offline-first: works without internet, keeping your data private • No round trip: your question is answered on the phone, not sent to a server • Multilingual: fluent in Thai and English, interface included • Practical AI: helps with daily tasks, planning, and emergency guidance • Point your camera at it — photograph a receipt, a form, a label or a page of a contract and ask about it without leaving the app • Ask about your documents — attach a PDF, a text file or a photo, and text is read out of images as well • Choose your model — pick an open model in a size that fits your phone, or add any MLX model from Hugging Face or a folder on your device. Each one shows what it costs in space and memory before you download it • Decide what it is allowed to do — web search, Wikipedia lookups and reading your folders are each a switch, each asks before it runs, and one "Fully offline" switch closes all of them at once Nothing is uploaded unless you switch on a tool that needs the network — and when you do, only what that tool needs is sent. Stay connected, even when you're not. Wherever you go, ChindaGo is always ready to assist.

About

Sundial Time Marks

Visualize your progress through natural cycles like days, weeks, years, and your lifetime with customizable widgets. See where you stand at a glance with visual marks representing past, present, and future. Your data remains private and synced across devices.

Highlights
  • Visualize time across natural cycles
  • Home Screen and Lock Screen widgets
  • Lifetime progress visualization
  • Customizable styles and palettes
  • Private iCloud synchronization
  • Monthly year-progress notifications
Features
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INSPIRATION The sundial is an ancient instrument for telling the time. It made invisible time visible. Nobody uses one anymore. Sundial sets out to do the same, in a way made for today: it draws time again with shapes, colours and progress. THE NAME The Chinese name, 岁时, comes from Jingchu Suishi Ji, written by Zong Lin in sixth-century China. The book follows the year from New Year's Day to New Year's Eve, and in its pages a year is not 365 identical days but a sequence of named stretches of time. The app does the same: it cuts continuous time into pieces and lays them out in front of you. The English name, Sundial, is that ancient instrument for telling the time. TIME YOU CAN SEE Every stretch of time is drawn as a row of marks: behind you in ink, right now in a single vermilion stroke, still ahead in light grey. No need to open the app. Glance at your Home Screen and you know where you stand. · Seven cycles: today, this week, this month, this quarter, this year, the lunar year and your lifetime · Countdown: from a start date to a target date, see what is left · Count up: from a date in the past, see how far you have come · Overview: today, this week, this month and this year side by side · Lifetime: enter your birthday and a life expectancy, and your life becomes a grid of marks, drawn exactly like your day. Where you are in the day and where you are in your life line up at a glance WHERE YOU LOOK EVERY DAY · Home Screen widgets in small, medium and large, plus extra large on iPad · Lock Screen widgets in circular and rectangular, so a countdown can sit right on your Lock Screen · Full iPad support in both orientations 29 STYLES, 57 PALETTES Bars, thin bars, capsules, stairs, dots, dot matrix, ring, tick ring, ink ring, hexagons, timeline, neon, and motifs from Chinese ink painting: pine, bamboo, plum, leaf, mountains, clover, moon phase and seal. From a single hairline to a small painting, all in the same paper and ink language. Palettes come in Universal, Chinese, Night, Material and Contrast, or build your own from any background and accent colour. Over twenty typefaces, and the figures follow them: stroke weight and line ends match the character of the font. FULL SCREEN AND SHARING Open any item for a full screen view: this year as 365 dots, one for each day, or this month as a calendar of dots. Share any of them as an image. YEAR PROGRESS ON THE FIRST OF EACH MONTH At 9 AM on the first of each month, a silent notification with a card of the year so far. Check this year's progress in Settings any time, share it, or turn the reminder off. YOUR DATA STAYS YOURS Everything is stored on your device and in your own private iCloud database. The developer never sees it and collects nothing. With iCloud sync on, switch phones or reinstall and your widgets are still there. Sync can be turned off at any time. FREE AND PRO The free version lets you create three widgets with the basic styles and every palette. Sundial Pro removes the limit and unlocks every style and iCloud sync, on iPhone, iPad and Mac. Terms of Use https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

iApp ChindaGo3 screens
Sundial Time Marks4 screens

Verdict

The call

The clearest difference is in-app purchases: iApp ChindaGo at none against Sundial Time Marks's 3. Sundial Time Marks's advantage is update cadence (every 9 days vs every 11 months) and device support (3 vs 1). 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. Sundial Time Marks sells 3 in-app purchases, starting at $0.99 per month. iApp ChindaGo asks for nothing beyond the download.

UpkeepUpdate frequency

iApp ChindaGo ships an update every 11 months, Sundial Time Marks every 9 days. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

Scorecard3 real differences · 7 level
iApp ChindaGo versus Sundial Time Marks: the parameters behind the verdict, then further details
ParameteriApp ChindaGoSundial Time Marks
PriceFreeFree
Rating—5.0 (1 ratings) — better
Positive reviews—92.3% of reviews
Number of ratings—1 — better
Update frequencyEvery 11 monthsEvery 9 days — better
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Freemium
DevicesiPhoneiPhone, iPad, Mac — better
Requires iOS18.017.0 — better
Further details — not scored
Size38 MB33 MB
Age rating9+4+
DeveloperI APP TECHNOLOGY COMPANY LIMITED婉 唐

In-app purchases

None

iApp ChindaGo

No in-app purchases

3 purchases

Sundial Time Marks

Subscriptions2
  • Sundial Pro Monthly$0.991 Month
  • Sundial Pro Yearly$6.991 Year
One-time1
  • Sundial Pro Lifetime$9.99

Questions

Is iApp ChindaGo free?
iApp ChindaGo is free to download, with no in-app purchases.
Is Sundial Time Marks free?
Sundial Time Marks is free to download, with in-app purchases available.
Do iApp ChindaGo or Sundial Time Marks have ads?
Neither iApp ChindaGo nor Sundial Time Marks shows ads.
Which is updated more often, iApp ChindaGo or Sundial Time Marks?
iApp ChindaGo ships an update every 11 months, and Sundial Time Marks every 9 days. Most recently, iApp ChindaGo was updated on October 30, 2026 and Sundial Time Marks on October 31, 2026.

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