Comparison

ThreadMaster vs Spark

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

Head to head
About

ThreadMaster

Browse multiple forums and communities with advanced features like NG filters, unread tracking, and dark mode. Save favorite threads, track browsing history, and participate in discussions. Optimized for fast, organized reading on various devices.

Highlights
  • Multi-forum browsing
  • NG filters (threads, boards, regex)
  • Unread tracking
  • Favorites and history
  • Dark mode
  • Thumbnail and link previews
  • Thread creation and posting
Features
Read full description

◆ Multi-Forum Viewer with Advanced Features ThreadMaster is a powerful forum viewer for browsing threads across multiple boards and communities. It includes advanced features like NG filters, unread tracking, differential loading, and dark mode. Whether you check daily updates or follow long discussions, ThreadMaster keeps reading fast and organized. ◆ Main Features - Favorites: Save threads and boards for easy access. - Browsing History: Track your viewed threads. - Thread Creation: Start your own discussions. - Posting: Participate in discussions by posting your comments. - Thumbnail Display: View image URLs as thumbnails. - Anchor Link Preview: Preview links before clicking. - ID Post List: View posts grouped by each user ID. - Dark Mode: Comfortable browsing at night. - iPad Support: Optimized for larger screens. - Highlight Own Posts: Easily find your comments. - Cache Deletion: Free up storage space. - Sage Button: Don't bump threads when you post. - Differential Reading: Update threads with new posts only. - Unread Counts: See the number of unread posts in favorites and thread lists. - Read Items Grouping: Organize read items in thread lists. - Automatic Image Loading: Manage image loading preferences. - Mosaic Feature: Add mosaics to images. - Rich Thread Sorting: Various sorting options for threads. - Regular Expression NG: Filter threads by body, email, or name. - Board NG: Filter out unwanted boards. - Thread NG: Filter out unwanted threads. - In-thread Search: Find specific content within threads. ◆ Supported Services - Supports multiple forum and board services. - Additional compatibility updates are delivered continuously. *We plan to add more features based on your requests.* ◆ Bug Reports We welcome feedback and bug reports within the app or through the following forms: - Feedback: https://forms.gle/GfPPr37Cyya1msGX9 - Please use this instead of app reviews. - Bug Reports: https://forms.gle/ndAVLvmPbXo25pEEA - Current bugs are listed here. ◆ Terms of Service For detailed terms, please refer to: https://hackmd.io/W8T2gLO-TRmQj-5nxfocdw

About

Spark

This utility helps you organize, launch, and manage your Ren'Py visual novels. It offers tailored compatibility with various engine versions, powerful save management, and tools to enhance your reading experience, like a gallery viewer and variable editor.

Highlights
  • Launch and play Ren'Py visual novels
  • Select specific Ren'Py engine versions
  • Manage and backup/restore game saves
  • Organize and rename novel titles
  • Import novels from various file formats
  • Browse game assets and edit variables
  • On-device translation for foreign titles
Features
Currently charting
Read full description

Spark: The Essential Tool for Managing Ren'Py Visual Novels Spark is an independent utility for organizing and launching Ren'Py visual novels. It is not affiliated with or supported by the official Ren'Py project. For any issues with this app, please contact Spark support, not the Ren'Py team. Launch and Play Your Novels with Ease Import and start your favorite Ren'Py visual novels directly in Spark. Once added, your titles are ready to launch with a tap, so you can focus on reading and playing instead of manual setup. Tailored Compatibility for Each Novel Choose from multiple Ren'Py engine versions to match your novel and improve stability: 8.x: 8.5.2, 8.5.0, 8.4.1, 8.3.7, 8.3.4, 8.2.3, 8.1.3, 8.0.3 7.x: 7.8.8, 7.8.4, 7.7.3, 7.6.3, 7.5.3, 7.4.11 Per-novel configuration lets you: - Select the best Ren'Py version for each title - Fine-tune settings to improve quality of life. - Improve performance on complex or older games Note: Performance and compatibility vary by novel. Older titles or very large games may contain bugs or fail to run. Smaller devices can experience rendering issues. Some novels may not work at all, though we strive to support as many as possible. Powerful Save Management Take full control of your progress across all novels: - View all saves in one place instead of hunting through folders - Backup saves before big choices or endings so you can revisit them anytime - Restore old saves if something breaks or you want to replay a specific branch - Import saves from other devices and delete unwanted saves to keep things tidy Organize Your Entire Library Keep your Ren'Py collection clean and easy to navigate: - See all installed novels at a glance - Rename titles to match your personal library style - Manage multiple versions of the same novel, such as different language patches or updated builds Flexible Novel Import Add new novels from a variety of common formats: - Import from zip, apk, 7z, tar, or rar files - Quickly bring in titles from backups, downloads, or other devices Once imported, novels become part of your Spark library with version and save management ready to use. Ren'Py-Specific Tools and Enhancements Dig deeper into your visual novels with advanced utilities: Gallery Viewer - Browse novel assets directly inside Spark - Inspect images and other media used by the game Variable Editor - View and edit game variables while playing - Skip grinding, fix bugged flags, or jump to specific routes by adjusting in-game values On-Device Translation - Translate novels using Apple’s on-device translation system - Make foreign-language titles more approachable without leaving the app - Keep translations private and fast by staying on your device Your Gateway to the Ren'Py Visual Novel Universe While Spark is not affiliated with Ren'Py, it is designed as a powerful companion for players who want full control over how they install, launch, customize, and maintain their Ren'Py visual novels in one place. Additional Licensing Information Ren'Py includes free software licensed under various terms, including the GNU Lesser General Public License. For a complete list of included software and license details, please visit the official Ren'Py website. Terms of Use https://spark.devl.ai/reference/terms/

Screenshots

ThreadMaster4 screens
Spark4 screens

Verdict

The call

The clearest difference is review sentiment: Spark at 81% against ThreadMaster's 33%. Spark also leads on ads (none vs shown) and ratings volume (191 vs 11). ThreadMaster's advantage is price (Free vs $6.99) and update cadence (every 4 days vs monthly). On in-app purchases, monetization model, 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

ThreadMaster is free to download; Spark costs $6.99 up front. ThreadMaster sells 14 in-app purchases, starting at $0.99 per month and Spark sells 5 in-app purchases, starting at $5.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

ThreadMaster holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Spark has 191 ratings behind it against 11, so its average is the more settled of the two. Written reviews complicate that: 33% of ThreadMaster's written reviews are positive against 81% of Spark's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

ThreadMaster ships an update every 4 days, Spark monthly. The most recent releases landed on September 28, 2026 and September 30, 2026 respectively.

Scorecard7 real differences · 4 level
ThreadMaster versus Spark: the parameters behind the verdict, then further details
ParameterThreadMasterSpark
PriceFree — better$6.99
Rating5.0 (11 ratings) — better4.7 (191 ratings)
Positive reviews33.3% of reviews81.5% of reviews — better
Number of ratings11191 — better
Update frequencyEvery 4 days — betterMonthly
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
Best chart rank—#61 — better
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.015.5 — better
Further details — not scored
Size101 MB633 MB
Age rating17+4+
DeveloperKazumasa ShimomuraDevon Lewis

Customer experience

ThreadMaster

All ratings11 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews51 reviews
Positive33.3%
Neutral13.7%
Negative52.9%

Spark

All ratings191 ratings
Positive93.2%
Neutral2.6%
Negative4.2%
Written reviews135 reviews
Positive81.5%
Neutral6.7%
Negative11.9%

In-app purchases

14 purchases

ThreadMaster

Subscriptions2
  • VIPプラン7 Days trial$0.991 Month
  • VIPプラン7 Days trial$9.991 Year
One-time12
  • Donation$0.29
  • Donation$0.49
  • Donation$2.99
Show 9 more
  • Donation$5.99
  • Donation$9.99
  • Donation$11.99
  • Donation$19.99
  • Donation$39.99
  • Donation$59.99
  • Donation$199.99
  • Donation$299.99
  • Donation$599.99
5 purchases

Spark

Subscriptions2
  • Monthly Sponsor$5.991 Month
  • Yearly Sponsor$19.991 Year
One-time3
  • Small Tip$2.99
  • Medium Tip$4.99
  • Large Tip$9.99

Questions

Is ThreadMaster free?
ThreadMaster is free to download, with in-app purchases available.
Is Spark free?
Spark costs $6.99, and also offers in-app purchases.
Which has better reviews, ThreadMaster or Spark?
ThreadMaster is rated higher. ThreadMaster averages 5.0 out of 5 from 11 ratings, while Spark averages 4.7 from 191 ratings.
Do ThreadMaster or Spark have ads?
ThreadMaster shows ads; Spark does not.
Which is updated more often, ThreadMaster or Spark?
ThreadMaster ships an update every 4 days, and Spark monthly. Most recently, ThreadMaster was updated on September 28, 2026 and Spark on September 30, 2026.

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