Comparison

Spool vs Overtchat

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

Head to head
About

Spool

Manage your 3D printing filament inventory with detailed tracking of materials, costs, and stock levels. Log print details, monitor printer maintenance, and gain insights into your printing habits. Integrates with Bambu Lab printers for automatic data logging.

Highlights
  • Filament spool tracking
  • Cost and weight logging
  • Low-stock warnings
  • Print logging and analysis
  • Bambu Lab printer integration
  • Printer maintenance schedules
  • NFC/QR code spool tagging
Read full description

You have 40 spools. You're about to start a 12-hour print. How much PETG do you actually have? Spool is precision filament inventory for 3D printing. Know what you have, what it costs, and what's running low. Built by a maker tired of guessing. Now on Mac too. TRACK YOUR COLLECTION Fast spool entry with auto-fill from screenshots and product links. Material, brand, colour, weight, cost, storage. Remaining weight tracked to the gram, with low-stock warnings at the levels you set. THE HUB Tap the centre tab and a glass command centre opens over any screen. Add a spool, log a print, scan a tag, open analytics or your printers, all from one place. IMPORT FROM YOUR SLICER Send a sliced .gcode or .3mf to Spool and the print writes itself up from what the file carries: name, print time, filament weight, material and colour. Spool suggests the matching spool and finds the printer in your Workshop. Not every slicer's files can be read yet. THE PRINT TRAY Imported files wait in the tray with Bambu Cloud prints you have not logged yet. Nothing is recorded until you review it. With iCloud on, logging or discarding on one device clears it on the others. PRINT LOG & PRINT STORY Every print holds its full process settings, filled in for you when the print comes from Bambu Cloud. Rate each one and record why it failed. Tap any print and its story opens full screen: costs, telemetry and spool gauges, with previous attempts on Pro. YOUR INVENTORY AS A SPREADSHEET Choose your columns, sort and resize them, group your spools and total up their count and weight. Save the arrangement as a named view: free, with no limit. Exports to CSV. BAMBU LAB INTEGRATION Connect your Bambu Cloud account and your prints fill the tray ready to log. Free for everyone. AMS multi-material prints split per slot, and Spool remembers your last match. CATEGORIES Built-in categories, plus as many of your own as you like. Spool suggests one per print and learns your overrides. Colour, emoji, auto-tagging and per-category insights are Pro. PRINTER MAINTENANCE Schedules drawn from manufacturer documentation for popular Bambu Lab, Prusa, Creality, Anycubic and Elegoo models, with a standard task set for the rest. A live health score per printer: overdue tasks turn red, completing one lifts it. SPOOLTAG Tap your iPhone to an NFC-tagged spool and everything opens instantly. Every label carries a QR code that scans from the camera. Spool reads and writes filament tags. Label Studio designs labels for thermal rolls, sticker sheets or A4, or exports vector PDF. AR Inventory overlays live data above every tagged spool. ANALYTICS & INTELLIGENCE Dashboards for Pulse, Economics, Energy, Material and Hardware. Add your electricity rate once and prints show material and energy cost together. WORKSHOP MANAGEMENT Shelves, dryers, AMS units and boxes, with humidity and seal date tracking. Shopping list and batch management for multi-packs. START FREE 20 spools, 2 printers, 4 storage locations, 30 days of analytics. Bambu Cloud sync, slicer import, the Print Tray, Saved Views, CSV import, SpoolTag, AR Inventory, widgets and Print Story included. GO PRO Unlimited spools, printers and storage. Lifetime analytics, category insights and print lineage. Label Studio with thermal, sticker sheet and vector PDF exports. Batch printing, category customisation, inventory value totals, maintenance notifications and Live Activities. SUBSCRIPTION & PURCHASE INFO Spool offers a one-time Spool Pack, which permanently adds 10 slots to a free account, and two auto-renewing subscriptions, Spool Pro Monthly and Yearly. Payment is charged to your Apple Account at confirmation and renews unless cancelled 24 hours before the period ends. Manage in Account Settings. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://lance-studio.com/privacy.html

About

Overtchat

Features
Read full description

Your models. Your conversations. Your server. OvertChat connects your iPhone and iPad to an OvertChat server you choose. Chat with local or hosted AI models, keep conversations organized, and pick up your work across devices. A PLACE TO THINK • Stream responses as they arrive, with readable formatting and code blocks. • Organize conversations into projects and search your history. • Attach photos and documents for models that support them. • Use light or dark appearance and adjust your chat preferences. YOUR SERVER, YOUR MODELS Your server administrator chooses the model providers and optional services. Connect to local inference servers or hosted providers through the same app. Chats, projects, and uploaded files are stored on your configured server. MORE WHEN YOUR SERVER SUPPORTS IT Use web search, voice dictation, and spoken responses when the corresponding services are configured. Agent Connections lets you follow coding-agent sessions and respond to approvals through an OvertChat Host Connector on your own infrastructure. GETTING STARTED You need a compatible OvertChat server URL and an account created by its administrator. Enter the server address, sign in, and start a conversation. The app does not include a hosted AI service or run language models on your device. Available features and model capabilities depend on your server configuration. An internet or local-network connection to your server is required. OvertChat is free and open source. There are no in-app purchases or advertisements. Your hosting and any third-party model provider charges are separate. Learn more and find setup instructions at overtchat.com.

Screenshots

Spool4 screens
Overtchat2 screens

Verdict

The call

The clearest difference is in-app purchases: Overtchat at none against Spool's 3. Overtchat also leads on update cadence (every 4 days vs every 2 weeks) and iOS requirement (16.4 vs 26.1). On price, ads 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. Spool sells 3 in-app purchases, starting at $4.99 per month. Overtchat asks for nothing beyond the download.

UpkeepUpdate frequency

Spool ships an update every 2 weeks, Overtchat every 4 days. The most recent releases landed on October 10, 2026 and October 7, 2026 respectively.

Scorecard3 real differences · 7 level
Spool versus Overtchat: the parameters behind the verdict, then further details
ParameterSpoolOvertchat
PriceFreeFree
Rating5.0 (5 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings5 — better—
Update frequencyEvery 2 weeksEvery 4 days — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFreemium—
DevicesiPhone, iPad, Mac — betteriPhone, iPad
Requires iOS26.116.4 — better
Further details — not scored
Size77 MB77 MB
Age rating4+12+
DeveloperLucas MeloSwamita Gupta

In-app purchases

3 purchases

Spool

Subscriptions2
  • Spool Pro Monthly$4.991 Month
  • Spool Pro Yearly$49.991 Year
One-time1
  • +10 Spool Capacity$0.99
None

Overtchat

No in-app purchases

Questions

Is Spool free?
Spool is free to download, with in-app purchases available.
Is Overtchat free?
Overtchat is free to download, with no in-app purchases.
Do Spool or Overtchat have ads?
Neither Spool nor Overtchat shows ads.
Which is updated more often, Spool or Overtchat?
Spool ships an update every 2 weeks, and Overtchat every 4 days. Most recently, Spool was updated on October 10, 2026 and Overtchat on October 7, 2026.

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