Comparison

CoreSpec 3D vs Production Calendars

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

Head to head
About

CoreSpec 3D

Read full description

Easily create a 3D digital twin of any property! Use your digital twin to: - Create safety plans and share plans and detailed site maps with first responders to any device - Plan remodels, events, and furniture layout changes - Track and manage tasks in 3D Annotate your digital twin using Specs, which are digital sticky notes used to store tasks, images, links, and notes about a particular location or item in your digital twin. Edit your digital twins at any time through an easy-to-use, self-service editor. Cross team communication between projects, departments, vendors, and service providers. Walk through your digital twin using “First Person” mode.

About

Production Calendars

This app helps manage production schedules by tracking events, deadlines, and tasks for different departments. It facilitates real-time collaboration and integrates with other production tools to keep everything synchronized.

Highlights
  • Event and deadline scheduling
  • Task tracking with statuses and priorities
  • Real-time collaboration
  • Integration with Cast & Crew Lists
  • Departmental task views
Read full description

Calendars — schedule events, deadlines, and view tasks for every department. Tasks — track pre-production tasks with statuses, priorities, and due dates. Collaboration — invite and work together in real time. Integration — connects with Cast & Crew Lists to keep your production in sync. Privacy Policy: https://www.masterbook.io/privacy Account Terms: https://www.masterbook.io/terms Terms of Use (Apple Standard EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

CoreSpec 3D4 screens
Production Calendars4 screens

Verdict

The call

The clearest difference is in-app purchases: CoreSpec 3D at none against Production Calendars's 6. Production Calendars's advantage is ads (none vs shown) and update cadence (every 6 days vs every 2 months). On price, 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

Both are free to download. Production Calendars sells 6 in-app purchases, starting at $7.99 per month. CoreSpec 3D asks for nothing beyond the download.

UpkeepUpdate frequency

CoreSpec 3D ships an update every 2 months, Production Calendars every 6 days. The most recent releases landed on October 25, 2026 and October 31, 2026 respectively.

Scorecard3 real differences · 7 level
CoreSpec 3D versus Production Calendars: the parameters behind the verdict, then further details
ParameterCoreSpec 3DProduction Calendars
PriceFreeFree
Rating—5.0 (6 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—6 — better
Update frequencyEvery 2 monthsEvery 6 days — better
AdsYesNo — better
In-app purchasesNo — betterYes
Monetization—Freemium
DevicesiPhone, iPad, MaciPhone, iPad, Mac
Requires iOS18.018
Further details — not scored
Size897 MB88 MB
Age rating4+4+
DeveloperBoom Interactive IncDavin Nguyen

In-app purchases

None

CoreSpec 3D

No in-app purchases

6 purchases

Production Calendars

Subscriptions4
  • Plus Monthly14 Days trial$7.991 Month
  • Pro Monthly14 Days trial$24.991 Month
  • Masterbook Plus1 Month trial$79.991 Year
Show 1 more
  • Masterbook Pro1 Month trial$249.991 Year
One-time2
  • Plus Month Pass$7.99
  • Pro Month Pass$24.99

Questions

Is CoreSpec 3D free?
CoreSpec 3D is free to download, with no in-app purchases.
Is Production Calendars free?
Production Calendars is free to download, with in-app purchases available.
Do CoreSpec 3D or Production Calendars have ads?
CoreSpec 3D shows ads; Production Calendars does not.
Which is updated more often, CoreSpec 3D or Production Calendars?
CoreSpec 3D ships an update every 2 months, and Production Calendars every 6 days. Most recently, CoreSpec 3D was updated on October 25, 2026 and Production Calendars on October 31, 2026.

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