T3 Code vs Mark
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
T3 Code
Control your remote development environments from your mobile device. Manage agent runs, browse files, perform version control, and use the terminal with full desktop app functionality.
- Remote environment control
- Agent run initiation
- File browsing
- Version control actions
- Diff review
- Terminal access
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T3 Code Mobile is a companion app for controlling your remote T3 Code environments (https://t3.codes/). You can connect environment both manually using pairing codes, and also through managed T3 Connect. Once connected, you have pretty much the full power of the desktop app right in your hands. You can kick off agent runs, browse files, perform version control actions, review diffs, even use the terminal.
Mark
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Make feedback visible. Highlight the problem, draw the change, add a note, and share an annotated capture. Mark brings desktop annotation to Mac and webpage annotation to Safari on iPhone, iPad, and Mac. DESKTOP TOOLS ON MAC Keep a compact floating palette beside your work. Mark up app interfaces, designs, documents, and webpages on your screen. Use colored highlights, shapes, freehand drawing, and notes. Inspect small details with the desktop magnifier, then capture your annotated screen. Choose a palette layout and appearance that fit your workspace. Desktop annotation and magnification are Mac features. SAFARI EXTENSION INCLUDED Annotate webpages directly in Safari on iPhone, iPad, and Mac. Highlight text and regions, draw squares and circles, sketch arrows and underlines, and add sticky notes beside the content you are reviewing. CAPTURE, ORGANIZE, SHARE Keep saved images in Library, organize them into folders, open previews, and share through the system share sheet. On iPhone and iPad, new Safari captures are also available in the native Mark Library. Saved captures remain accessible after tool access ends. VISUAL CONTEXT FOR YOUR WORKFLOW Use annotated screenshots for design reviews, bug reports, writing feedback, and visual context in an AI-assisted workflow. Share an image with the app or person you choose. Mark does not include an integrated chatbot or generative service, and the personal release does not include live team collaboration. TRY MARK FREE FOR 30 DAYS Try the annotation tools and make new captures during a separate 30-day evaluation on your device. No subscription signup is required to start the evaluation, and it does not charge you automatically. MONTHLY OR YEARLY ACCESS After the evaluation, a paid subscription is required to continue using annotation tools and creating new captures. Mark Monthly is $2.99 per month and Mark Yearly is $19.99 per year in the United States. Yearly saves about 44% compared with twelve monthly payments. Both plans include the same personal tools: desktop annotation on Mac and the Safari extensions on supported Apple devices using the same Apple Account. Features vary by platform. Local prices are shown before purchase. Payment is charged to your Apple Account when you confirm a purchase. Subscriptions renew monthly or yearly at the selected price unless canceled at least 24 hours before renewal. Manage or cancel in Apple Account settings. Restore Purchases is available in Mark. Privacy Policy: https://mark-website-y5hm.onrender.com/privacy.html Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is chart position: T3 Code at #20 against Mark's unranked. Mark's advantage is device support (4 vs 2) and iOS requirement (15.0 vs 18.0). On price, ads and in-app purchases 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | T3 Code | Mark |
|---|---|---|
| Price | Free | Free |
| Rating | 4.9 (119 ratings) — better | — |
| Positive reviews | 93.6% of reviews | — |
| Number of ratings | 119 — better | — |
| Update frequency | Weekly | — |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Best chart rank | #20 — better | — |
| Devices | iPhone, iPad | iPhone, iPad, iPod, Mac — better |
| Requires iOS | 18.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 112 MB | 9 MB |
| Age rating | 12+ | 4+ |
| Developer | T3 Tools, Inc. | Spartadata |
In-app purchases
T3 Code
No in-app purchases
Mark
No in-app purchases









