Comparison

STL Viewer vs Deadline Countdown

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

Head to head
About

STL Viewer

View, explore, and edit 3D models on your iPhone or iPad. Basic viewing is included with purchase, with optional upgrades for advanced creation, editing, and reporting features. Models are processed locally for privacy.

Highlights
  • Open and view STL files
  • Rotate, pan, and zoom models
  • Basic model information inspection
  • Create and edit 3D models
  • Measure distances and angles
  • Export to multiple file formats
  • Generate local PDF reports
Features
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Open your STL file on iPhone or iPad and examine the model with rotation, zoom and technical views. Your app purchase includes basic viewing without a subscription. Pro and Studio are optional upgrades for creation, editing, inspection and reports. BASIC VIEWER Open binary or ASCII STL files. Orbit, pan and zoom, switch camera views, and inspect basic model information in solid or wireframe mode. PRO WORKSPACE Build with primitives and profiles; extrude and revolve shapes. Transform objects, preview Boolean operations and plane cuts, and use mesh repair tools. Organize multiple objects in local projects with undo, redo and saved revisions. Measure distances, angles and radii, and inspect sampled estimates of wall thickness and surface deviation. Export STL, OBJ, PLY, 3MF and GLB files, capture PNG images, and opt into project reminders. STUDIO REPORTS Studio includes Pro and adds local PDF reports with project information, geometry summaries and inspection annotations. IMPORTANT LIMITS Models are processed on your device, not uploaded to our servers. Projects and revisions are local. This app does not include cloud collaboration, SSO, STEP/B-rep CAD or manufacturing certification. Thickness and surface comparisons are sampled estimates, not certified measurements. File formats and mesh operations have safety limits and restrictions shown in the tools. STL does not record units; choose the correct unit for your model. OPTIONAL PLANS The app download is paid. Basic viewing needs no subscription. Creation, editing and advanced inspection require Pro or Studio; PDF reports require Studio. Monthly/annual subscriptions and Pro Lifetime are optional. The App Store displays prices and periods before purchase. Subscriptions renew automatically until cancelled in your Apple account settings. Restore Purchases is available in the app. Terms: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy: https://softwareideal.com.br/policy.html Support: https://softwareideal.com.br

About

Deadline Countdown

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A missed deadline is never small. The payment that turns into a late fee. The passport that expires the month you need it. The filing that blows the case. Deadline Docket is the docket for those dates — the obligations you cannot afford to lose track of. Open it and the answer is immediate: what is overdue, what is due today, tomorrow, and what is next. No digging, no feed, no noise. USE IT FOR • Bills and payments with hard due dates • Passport, license, and registration renewals • Court and filing deadlines • Forms, applications, and submissions • Appointments you cannot miss • Any obligation that needs one clear place to live HOW IT WORKS • Add a deadline in seconds — name, date, done • Everything grouped the way you triage: Overdue, Today, Tomorrow, Next • Scan the whole docket at a glance and act • Your deadlines stay on your device SIMPLE ON PURPOSE This is not a party countdown app, a calendar replacement, or a project-management suite. No account. No feed. No social layer. A docket does one job: nothing on it gets forgotten. SIMPLE PRICING One purchase — 99¢ in the U.S. (pricing varies by region). No subscription. No ads. Nothing recurring. Pay once and keep your deadlines in front of you. https://myworkingmemory.ai/deadlinedocket-privacy.html https://myworkingmemory.ai/deadlinedocket-terms.html

Screenshots

STL Viewer2 screens
Deadline Countdown4 screens

Verdict

The call

The clearest difference is price: Deadline Countdown at Free against STL Viewer's $0.99. Deadline Countdown also leads on in-app purchases (none vs 5). On update cadence, ads, device support 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

Deadline Countdown is free to download; STL Viewer costs $0.99 up front. STL Viewer sells 5 in-app purchases, starting at $2.99 per month. Deadline Countdown asks for nothing beyond the download.

UpkeepUpdate frequency

STL Viewer ships an update every 4 weeks, Deadline Countdown fortnightly. The most recent releases landed on November 3, 2026 and October 22, 2026 respectively.

Scorecard2 real differences · 8 level
STL Viewer versus Deadline Countdown: the parameters behind the verdict, then further details
ParameterSTL ViewerDeadline Countdown
Price$0.99Free — better
Rating5.0 (1 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings1 — better—
Update frequencyEvery 4 weeksFortnightly — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationPaid—
DevicesiPhone, iPadiPhone, Mac, Vision Pro — better
Requires iOS17.017.0
Further details — not scored
Size5 MB1 MB
Age rating4+4+
DeveloperFelipe Marques de BarrosMyworkingmemory LLC

In-app purchases

5 purchases

STL Viewer

Subscriptions4
  • STL Viewer Pro Mensal$2.991 Month
  • STL Viewer Studio Mensal$5.991 Month
  • STL Viewer Pro Anual$22.991 Year
Show 1 more
  • STL Viewer Studio Anual$49.991 Year
One-time1
  • STL Viewer Pro Vitalício$39.99
None

Deadline Countdown

No in-app purchases

Questions

Is STL Viewer free?
STL Viewer costs $0.99, and also offers in-app purchases.
Is Deadline Countdown free?
Deadline Countdown is free to download, with no in-app purchases.
Do STL Viewer or Deadline Countdown have ads?
Neither STL Viewer nor Deadline Countdown shows ads.
Which is updated more often, STL Viewer or Deadline Countdown?
STL Viewer ships an update every 4 weeks, and Deadline Countdown fortnightly. Most recently, STL Viewer was updated on November 3, 2026 and Deadline Countdown on October 22, 2026.

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