Comparison

SinceWhen vs 3D App for iPhone

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

Head to head
About

SinceWhen

Track the time elapsed since important events, from personal care to home maintenance. Get gentle reminders for when things are due next, with smart predictions based on your logging habits. Designed for real life, it offers a private and guilt-free way to manage recurring tasks.

Highlights
  • Log events with one tap
  • Smart predictions for due dates
  • Widgets for Home and Lock Screen
  • Siri and Shortcuts integration
  • Multi-day event tracking
  • Calendar and chart visualizations
  • Private by design, no account needed
Features
Read full description

Not everything is a daily habit. SinceWhen tells you how long it's been since the last haircut, oil change, vet visit, or dose, and when it's likely due next. One tap to log. No streaks. No guilt. No account. HOW IT WORKS • Name something you do now and then • Tap to log it, from the app, a widget, your Lock Screen, or Siri • SinceWhen learns your rhythm and shows what's due BUILT FOR REAL LIFE • Home & car: AC filters, oil changes, smoke detectors, deep cleans • Plants & pets: watering, fertilizing, flea treatments, vet visits • Health & self-care: as-needed medication, vitamins, skincare, dentist • Life admin: haircuts, calling family, reviewing subscriptions • ADHD-friendly: a zero-shame history for time blindness SMART, GENTLE PREDICTIONS SinceWhen studies the gaps between your logs and says things like "Usually every 6 weeks" and "Expected tomorrow". Pattern aware skips one-off long gaps, like a week away, and follows your real routine. Optional nudges arrive only when something is actually due, and you can log straight from the notification. MULTI-DAY EVENTS Tap once to start, tap again to end. Trips, sick days, and cycles are counted as Day 1, Day 2, and so on, with the full duration shaded on your charts. LOG IT IN SECONDS • Home Screen and Lock Screen widgets • Undo an accidental tap right where you made it • Siri and Shortcuts: "Hey Siri, log haircut" • Add a note, or backdate a log in a couple of taps EVERYTHING AT A GLANCE • Calendar with a ring on the next expected day • Interval and monthly charts • Categories with their own insights • Pause an event while you're away so predictions stay honest • Grid or list, pin what matters, dark mode, iPhone and iPad PRIVATE BY DESIGN No accounts, no ads, no analytics. Your timeline stays on your device and in your own iCloud. Export everything as JSON any time. FREE TO START Your first 3 events are free forever with every core feature. SINCEWHEN PRO Unlimited events, iCloud sync and backup, Siri and Shortcuts, and JSON export. • Monthly and Yearly: Family Sharing included • Lifetime: pay once, own it forever (Family Sharing not included) Available in English, German, Japanese, Spanish, French, Portuguese, Korean, and Italian. Privacy Policy: https://devapt.com/sincewhen/privacy Terms of Use: https://devapt.com/sincewhen/terms

About

3D App for iPhone

Create, sculpt, and paint 3D models directly on your iPhone or iPad. Utilize intuitive touch controls and AI-assisted tools to bring your ideas to life, from simple shapes to complex designs. Export your creations in popular formats for 3D printing, game development, and AR experiences.

Highlights
  • 3D modeling with touch controls
  • Mesh editing and sculpting tools
  • 3D painting and material customization
  • AI-assisted creation from ideas/images
  • Augmented reality model preview
  • Export to STL, OBJ, glTF, USDZ
Features
Read full description

CREATE 3D MODELS ANYWHERE 3D App for Modeling brings 3D modeling, mesh editing, sculpting and painting to your iPhone or iPad. Start with simple shapes, transform them with touch controls and turn your ideas into editable 3D models—all in one mobile workspace. MODEL WITH EASY TOUCH CONTROLS Build objects from basic shapes and edit directly on your model. Move, rotate and scale objects while exploring your project from different angles. Use built-in modeling tools to: • Adjust dimensions and proportions • Move, rotate and scale objects • Cut, combine and duplicate shapes • Edit meshes and polygons • Create low-poly models • Arrange multiple objects in one project • Undo and redo changes SCULPT, PAINT & CUSTOMIZE Reshape surfaces, smooth areas and add details with sculpting tools. Paint individual parts, apply colors and adjust materials to give each model its own style. Combine structured 3D modeling with freeform sculpting to create characters, decorative objects, product concepts, prototypes and game assets. AI-ASSISTED 3D CREATION Explore new ideas with AI-assisted tools. Start from an idea or reference image, then refine the result using the built-in 3D editor. Adjust shapes, dimensions, colors and materials to make the model your own while staying in control of the final design. CREATE FOR YOUR NEXT PROJECT Use 3D App for Modeling to create: • Models for 3D printing workflows • Product concepts and prototypes • Low-poly game assets • Characters and decorative objects • Creative 3D artwork • AR-ready models Whether you are learning the basics of 3D modeling or developing a new concept, the mobile workspace helps you build, experiment and refine your ideas. VIEW YOUR MODELS IN AR Preview your creations in augmented reality and see how they look in your surroundings. Bring your models beyond the editing workspace with the View AR feature. EXPORT POPULAR 3D FORMATS Export your models for compatible creative tools and workflows: • STL for 3D printing workflows • OBJ for supported 3D modeling software • glTF and GLB for real-time 3D content • USDZ for compatible AR experiences Continue working with your creations in supported 3D software, game-development tools, 3D printing workflows and augmented reality platforms. Slicing, printer setup and printer control require compatible third-party tools. From your first shape to your next finished model, 3D App for Modeling keeps your creative tools together. Create your next 3D model anywhere. SUBSCRIPTION: We offer auto-renewing subscription: • Length: Weekly and Yearly • Your subscription will be charged to your iTunes Account at confirmation of purchase and will automatically renew for the selected duration unless auto-renew is turned off at least 24 hours before the end of the current period. • You can manage your subscription and turn off auto-renewal by visiting your iTunes Account Settings after purchase Privacy Policy & Terms of Use • Privacy Policy: https://gosimplex.net/privacy-policy • Terms of Use: https://gosimplex.net/terms-of-service

Screenshots

SinceWhen4 screens
3D App for iPhone4 screens

Verdict

The call

The clearest difference is rating: 3D App for iPhone at 5.0 against SinceWhen's 4.4. 3D App for iPhone also leads on review sentiment (100% vs 88%) and update cadence (every 4 days vs weekly). SinceWhen's advantage is monetization model (freemium vs subscription) and ratings volume (14 vs 2). On price, ads, in-app purchases and device support 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. SinceWhen sells 3 in-app purchases, starting at $4.99 per month and 3D App for iPhone sells 3 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

3D App for iPhone holds the better App Store score, 5.0 against 4.4. That said, the two scores are not equally well evidenced: SinceWhen has 14 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 88% of SinceWhen's written reviews are positive against 100% of 3D App for iPhone's.

UpkeepUpdate frequency

SinceWhen ships an update weekly, 3D App for iPhone every 4 days. The most recent releases landed on November 5, 2026 and November 6, 2026 respectively.

Scorecard5 real differences · 5 level
SinceWhen versus 3D App for iPhone: the parameters behind the verdict, then further details
ParameterSinceWhen3D App for iPhone
PriceFreeFree
Rating4.4 (14 ratings)5.0 (2 ratings) — better
Positive reviews87.5% of reviews100.0% of reviews — better
Number of ratings14 — better2
Update frequencyWeeklyEvery 4 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationFreemium — betterSubscription
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.617.0 — better
Further details — not scored
Size12 MB38 MB
Age rating4+4+
DeveloperBasharath ShaikAppCraft Studio

Customer experience

SinceWhen

All ratings14 ratings
Positive85.7%
Neutral0.0%
Negative14.3%
Written reviews8 reviews
Positive87.5%
Neutral0.0%
Negative12.5%

3D App for iPhone

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

3 purchases

SinceWhen

Subscriptions2
  • SinceWhen Pro + Family (Monthly)$4.991 Month
  • SinceWhen Pro + Family (Yearly)$19.991 Year
One-time1
  • SinceWhen Pro (Lifetime)$39.99
3 purchases

3D App for iPhone

Subscriptions2
  • Weekly$4.997 Days
  • Yearly$29.991 Year
One-time1
  • Lifetime$69.99

Questions

Is SinceWhen free?
SinceWhen is free to download, with in-app purchases available.
Is 3D App for iPhone free?
3D App for iPhone is free to download, with in-app purchases available.
Which has better reviews, SinceWhen or 3D App for iPhone?
3D App for iPhone is rated higher. SinceWhen averages 4.4 out of 5 from 14 ratings, while 3D App for iPhone averages 5.0 from 2 ratings.
Do SinceWhen or 3D App for iPhone have ads?
Neither SinceWhen nor 3D App for iPhone shows ads.
Which is updated more often, SinceWhen or 3D App for iPhone?
SinceWhen ships an update weekly, and 3D App for iPhone every 4 days. Most recently, SinceWhen was updated on November 5, 2026 and 3D App for iPhone on November 6, 2026.

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