Comparison

Sider vs HelloNotes

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

Head to head
About

Sider

This AI assistant offers access to multiple advanced language models for tasks like summarization, writing, image generation, and homework help. It also functions as a knowledge base, allowing users to chat with documents and websites, and engage with diverse AI characters.

Highlights
  • Access to multiple top AI models
  • Summarize documents and articles
  • Generate creative images from text
  • AI-powered homework assistance
  • Chat with PDFs, documents, and websites
  • Engage with over 100 AI bots
  • Voice-to-text functionality
Features
Read full description

Meet Sider, your 24/7 AI assistant and companion. Sider is now powered by leading AI technologies such as Claude and Gemini, designed to enhance your productivity and simplify your life. Whether you need to summarize a lengthy document, generate creative images, help your children with their homework, or get instant answers to your questions, Sider is here to assist you in every scenario. 1. Top AI Models, All in One App - Comprehensive AI Access: Interact with leading AI technologies, including: - GPT: GPT-6 Luna, GPT-6 Astra, GPT-6.1 Sol, GPT-5.6 Terra, GPT-5.4 mini - Anthropic: Claude Opus 5.5, Claude Sonnet 5.5, Claude Opus 4.8, Claude Fable 5.1, Claude Haiku 5.5 - Google: Gemini 3.8 Flash - xAI: Grok 4.6 - DeepSeek: DeepSeek-V4-Pro, DeepSeek-V4.1-Flash - Moonshot AI: Kimi K3 - Zhipu: GLM-5, GLM-5.3 Flash - Qwen: Qwen3.8-Max - Sider Fusion Model: Dynamically selects the best AI model for optimal responses, ensuring a seamless experience. 2. Your Reliable AI Assistant & Helper - Reading Assistance: Summarize, translate, and explain content from documents, images, and web links. - Writing Helper: Create and rewrite essays, posts, emails, and more in any tone or style. - Image Generator: Turn text into stunning images with leading AI models. - Pocket Tutor: Solve problems, explain concepts, and assist with homework and research. - Chat with Content: Upload 30+ file formats, images, or URLs to ask questions and get instant answers. 3. Sider Hand - Complete Tasks from Your Phone - Tell Sider Hand what you need: Ask for research, comparison, extraction, organization, monitoring, or content creation. - Let it do the work: Sider Hand can research, compare, extract, organize, and create. - Get usable results: Receive summaries, tables, reports, drafts, recommendations, or files. - Handle complex workflows: It can work across multiple sources, websites, pages, and online processes when needed. - Improve productivity: Reduce repetitive browsing, copying, organizing, and formatting. 4. Wisebase - Your AI-Powered Knowledge Base - Knowledge In: Collect Information from Everywhere - Upload PDFs, documents, presentations, and other files - Save websites by pasting URLs - Knowledge Process: Transform Information into Insights - Chat with multiple files for broad analysis - Deeply understand any file with AI assistance Boost your productivity and have fun with Sider. Download now! Terms of Use: https://sider.ai/policies/terms.html

About

HelloNotes

Features
Read full description

HelloNotes is a fast, private, local-first Markdown knowledge base for iPhone and iPad. Your notes are plain .md files in a folder you choose — no account, no lock-in, no cloud required. WRITE IN LIVE MARKDOWN • A native editor with live styling — headings, bold, lists, tables and syntax-highlighted code • LaTeX math ($…$ and $$…$$) and Mermaid diagrams rendered inline • Obsidian-style callouts, hidden comments, and a clean editor that tucks YAML front matter into an editable Properties panel CONNECT YOUR IDEAS • [[Wiki-links]] with autocomplete, including links straight to a heading • Backlinks and unlinked mentions, with one-click linking • #tags (nested) with autocomplete, and a Tags view of every tag in the collection • Note transclusion — embed a whole note or a single section • A mind map of the links across your whole vault, and a graph of each note's links in and out FIND ANYTHING • Full-text search and "Open Quickly" across notes and headings • Bookmarks, daily notes and templates AI ON YOUR DEVICE, OR ON PRIVATE CLOUD COMPUTE • Summarise a note, suggest tags and links, and rewrite a passage — with Apple Foundation Models, powered by Apple Intelligence • An Assistant that answers from your own notes and shows the notes it read, and can look things up on the web — experimental, and it doesn't change your notes • Run Apple's model on your device, Local (Apple), or choose Cloud (Apple), Apple's server model on Private Cloud Compute: what it is sent isn't stored, and isn't accessible to Apple. Its answers and suggestions say which model made them • Or download an open model and run it on your device with MLX There are no third-party AI services and no API keys. VERSION HISTORY WITH GIT • Built-in Git: initialise a repo, browse a note's history and restore earlier versions EXPORT & MORE • Export to HTML or PDF • Full light and dark support Your files stay yours — readable in any editor, syncable with any tool. HelloNotes just makes them a joy to think in. SUPPORTING HELLONOTES (OPTIONAL) HelloNotes is free, and every feature is included for everyone. Two entirely optional purchases live in Settings > Support. Backing HelloNotes adds one thing — the ability to send a support request from inside the app — and nothing else: • Champion — a one-off contribution of A$50. You can give more than once; the app remembers how many times. • Commercial — an annual licence for using HelloNotes at work. A$50 per year, an auto-renewable subscription charged to your Apple Account on confirmation and renewing each year unless turned off at least 24 hours before the period ends. Manage or cancel it in Settings > your name > Subscriptions. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://hellotham.com/hellonotes/privacy

Screenshots

Sider4 screens
HelloNotes4 screens

Verdict

The call

The clearest difference is update cadence: Sider at every 2 weeks against HelloNotes's every 3 weeks. Sider also leads on iOS requirement (17.0 vs 27.0). On price, 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

Both are free to download. Sider sells 15 in-app purchases, starting at $9.99 per month and HelloNotes sells 2 in-app purchases, starting at $30.00 per year. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Sider ships an update every 2 weeks, HelloNotes every 3 weeks. The most recent releases landed on October 27, 2026 and October 29, 2026 respectively.

Scorecard2 real differences · 8 level
Sider versus HelloNotes: the parameters behind the verdict, then further details
ParameterSiderHelloNotes
PriceFreeFree
Rating4.7 (4.3K ratings) — better—
Positive reviews78.0% of reviews—
Number of ratings4.3K — better—
Update frequencyEvery 2 weeks — betterEvery 3 weeks
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPadiPhone, iPad, Mac — better
Requires iOS17.0 — better27.0
Further details — not scored
Size262 MB58 MB
Age rating17+4+
DeveloperVidline Inc.Hello Tham Pty Ltd

Bugs and requests

Sider

Reported bugs

4 issues
  • Internal server errors with ChatPDF
  • Login screen issues on desktop app
  • Freezing and crashing on older devices
  • Inconsistent behavior with certain AI models

Requested features

5 requests
  • Unlimited message usage
  • Improved text-to-image generation
  • Seamless cross-device synchronization
  • Dark mode and customizable themes
  • Enhanced STEM-focused capabilities

HelloNotes

Not enough reviews yet to summarise bugs or requests.

In-app purchases

15 purchases

Sider

Subscriptions14
  • Sider Monthly Basic Legacy$9.991 Month
  • Sider Basic Plan Monthly$9.991 Month
  • Sider Nano Plan Monthly$12.991 Month
Show 11 more
  • خطة Sider الشهرية المصغرة$14.991 Month
  • Sider Pro Plan Monthly$19.991 Month
  • Sider Unlimited Plan Monthly$39.991 Month
  • Sider Plus Plan Monthly$40.001 Month
  • Sider Pocket Plan Yearly3 Days trial$49.991 Year
  • Sider Pro Plan Monthly$65.001 Month
  • Sider Yearly Basic Legacy$99.991 Year
  • Sider Basic Plan Yearly$99.991 Year
  • Sider Professional Plan Yearly$199.991 Year
  • Sider Plus Plan Yearly$299.001 Year
  • Sider Unlimited Plan Yearly$299.991 Year
One-time1
  • бустер-пакет$10.00
2 purchases

HelloNotes

Subscriptions1
  • Commercial$30.001 Year
One-time1
  • Champion$30.00

Questions

Is Sider free?
Sider is free to download, with in-app purchases available.
Is HelloNotes free?
HelloNotes is free to download, with in-app purchases available.
Do Sider or HelloNotes have ads?
Neither Sider nor HelloNotes shows ads.
Which is updated more often, Sider or HelloNotes?
Sider ships an update every 2 weeks, and HelloNotes every 3 weeks. Most recently, Sider was updated on October 27, 2026 and HelloNotes on October 29, 2026.

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