Comparison

Skales vs PDF Toolbox

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

Head to head
About

Skales

This AI agent automates tasks by planning steps, using tools like calendars and files, and delivering results with your permission. It supports various AI models and offers hands-free voice interaction. Create documents, presentations, or prototypes directly from chat.

Highlights
  • Automated task planning and execution
  • Integration with real-world tools (calendar, web, files)
  • Support for multiple AI models
  • Voice-controlled hands-free operation
  • On-device memory and privacy
  • Creation of documents, presentations, and prototypes
Features
Read full description

Skales is an AI agent that does the work, not just the talking. Give it a job and it plans the steps, uses real tools (calendar, reminders, web, files, contacts) and delivers a finished result, asking your permission before anything that matters. It runs on the AI of your choice, pairs with your computer, and keeps what it knows about you on your device. No terminal, no setup. NEW: SKALES SCOUT (BETA) A scout is your own lasting AI agent with a name, a role and a rhythm. It makes rounds on its own, brings suggestions you answer with Go or Wait, keeps a morning standup and an evening summary, and holds goals over several days. Lead scouts hand work to sub-scouts. Each scout has its own model and daily budget, and you decide how far it may go. Run a scout only on your phone, or run the scouts on your computer from your pocket. WHAT AN AGENT DOES THAT A CHATBOT CANNOT "Plan my Friday" becomes a schedule in your real calendar. "Research this and write me a briefing" becomes cited sources and a document. "Wake me at 6" sets an alarm. Turn on Pocket Run and the agent keeps working across many steps until the job is done. EVERY MAJOR AI, ONE APP Start free with Skales IQ: just your email, no API key, no card. Or bring your own key for OpenAI, Anthropic, Google, Mistral, OpenRouter and more. Pick the reasoning depth per conversation, attach photos and files, and switch models anytime. AUTOMATION WITH A HARNESS Skales is built as an agent harness: tools, memory, skills and permissions working together. Built-in agents, custom agents and whole teams. Build automations from the chat. Every action that touches the outside world asks first. Connect Home Assistant, Spotify or WordPress with your own account. TALK TO IT: IRIS ORBIT A full voice mode: talk to Iris Orbit or to your Buddy and it talks back, hands-free, with your tools and approvals working as they do in chat. MAKE THINGS, NOT JUST ANSWERS Start a chat as Slides, Document or Note. Flow turns a brief into a finished document, deck or motion piece with 74 design aesthetics and your own brand kit. Lio builds a clickable prototype from a sentence. Studio generates images and video and designs social posts. A MEMORY THAT GROWS Skales remembers what matters across conversations and adapts to you, stored on your device and fully under your control. YOUR COMPUTER, FROM YOUR POCKET Pair with the free Skales desktop app for Windows, macOS and Linux and your phone reaches your computer's AI, sessions, files, tools and scouts. Or open the web interface from any browser on the same network. PRIVATE BY ARCHITECTURE, NOT BY PROMISE Your conversations and memory stay on your device by default. With your own key, requests go straight from your phone to the provider you chose; Skales runs no servers in between. No account required. No ads, no tracking, no data sold. Optional online features are clearly marked and off by default. And when you want zero cloud: Skales Local (beta) downloads an openly licensed model once and answers directly on your iPhone or iPad, even in airplane mode. DISCOVER A live community feed, topic Spaces and a personal news briefing. DESIGNED FOR EVERYONE No technical knowledge needed. 12 languages. Need help? Email request@skales.app, more at skales.app.

About

PDF Toolbox

Features
Read full description

A PDF toolbox: fifteen tools, one app, bought once: - Split a PDF by page ranges (1-3,7,9-12) or every N pages - Merge several PDFs into one — in order, interleaved, or reversed - Compress a PDF and see the real before/after size - Add a watermark — text, angle, opacity, placement - Add Bates numbers — prefix, starting number, zero-padding - Set or remove a password and its permissions - Read the words off a scan, so they can be selected and searched - Run split, compress, watermark, page numbers, Bates, rotate, password or form-fill across many files The real problem with a PDF app is not whether it works offline. It is what it does to your file once you trust it: corrupted files, blank saves, lost annotations, disappearing pages. PDF Toolbox is built around one rule: your file is never modified, and every PDF it writes is checked before you see it. WHAT'S IN 2.0 - Pages — split by ranges or every N pages, extract, reorder, delete, rotate, duplicate a page - Convert — scan with your camera, photos into a PDF, a PDF into JPEG, PNG, or HEIC images - Reduce — compress while keeping text selectable, or rasterize the pages for the smallest file - Mark — watermark, page numbers, Bates numbering, headers and footers - Mark up — highlight, underline, strike through, note, or draw on the page - Sign — draw or type a signature, then place and scale it - Forms — fill in a PDF form, or lock the answers in - Text — copy, search, and extract all the text in a document - Files — open from Files, iCloud, Mail, or Safari; recents one tap away - Home, Tools, Scan and Settings tabs; every tool in its own colour - iPad — full support, either orientation HOW WE PROTECT YOUR FILE Your original is opened read-only and is never the file PDF Toolbox writes to. Every job builds a new file in a private, temporary location, checks it, and only then hands it to you — through the share sheet or Save to Files. If a check fails, you get a plain error and no file — never a broken one labeled as done. What gets checked on every PDF this app writes: it opens correctly in two independent PDF readers, it has exactly the pages it should, no page comes out blank that wasn't blank in your original, the text you had is still there and still selectable wherever the job promises it, and your original is confirmed untouched — the same SHA-256, byte for byte, before and after. Above 64 MB it is checked on size, date and its first and last megabyte instead, and the receipt says "size and date unchanged" when that is what ran. Two things get fewer than nine, and say so: the strongest compression rasterizes the pages, so its receipt reads "pages rasterized — text no longer selectable" instead of the text clause; and page images and extracted text are not PDFs, so they arrive named and sized under "Saved" rather than "Verified". You see it before you export: the file, named and sized, every check ticked off beneath it. HONEST LIMITS Signing draws your signature onto the page. It is not a legal e-signature service — no identity verification, no audit trail, no certificate. Reading the words off a scan is never perfect. PDF Toolbox lays what it read invisibly over the picture and never alters the page you scanned. Locking a form's answers in flattens dropdown fields showing their first choice rather than the one you picked. Type the answer into a text field if the exact wording matters. PDF Toolbox does not convert Word or Office files to PDF, and it never will. iOS has no on-device way to do that correctly, and we will not upload your file to a server to fake it. Compression can only shrink pictures — a document that is already just text and lines has nothing left to squeeze, and PDF Toolbox says which of those it found rather than inventing a percentage. THE TERMS Bought once. No subscription, no in-app purchases, no ads. Fully offline — no account, no analytics, no network requests. Already own PageSplit? It is now PDF Toolbox — a free update.

Screenshots

Skales4 screens
PDF Toolbox4 screens

Verdict

The call

The clearest difference is price: Skales at Free against PDF Toolbox's $2.99. Skales also leads on update cadence (every 3 days vs every 3 weeks) and iOS requirement (15.1 vs 17.0). On ads, in-app purchases 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

Skales is free to download; PDF Toolbox costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Skales ships an update every 3 days, PDF Toolbox every 3 weeks. The most recent releases landed on November 5, 2026 and October 31, 2026 respectively.

Scorecard3 real differences · 7 level
Skales versus PDF Toolbox: the parameters behind the verdict, then further details
ParameterSkalesPDF Toolbox
PriceFree — better$2.99
Rating3.3 (3 ratings) — better—
Positive reviews60.0% of reviews—
Number of ratings3 — better—
Update frequencyEvery 3 days — betterEvery 3 weeks
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.1 — better17.0
Further details — not scored
Size184 MB4 MB
Age rating4+4+
DeveloperMario SimicNOSHU, llc

In-app purchases

None

Skales

No in-app purchases

None

PDF Toolbox

No in-app purchases

Questions

Is Skales free?
Skales is free to download, with no in-app purchases.
Is PDF Toolbox free?
PDF Toolbox costs $2.99, with no in-app purchases.
Do Skales or PDF Toolbox have ads?
Neither Skales nor PDF Toolbox shows ads.
Which is updated more often, Skales or PDF Toolbox?
Skales ships an update every 3 days, and PDF Toolbox every 3 weeks. Most recently, Skales was updated on November 5, 2026 and PDF Toolbox on October 31, 2026.

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