Comparison

CostX vs c.Notes

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

Head to head
About

CostX

This app helps you break down and visualize projects, costs, and products. Create Work, Cost, and Product Breakdown Structures with customizable views and efficient data entry. Easily share and integrate information with other applications.

Highlights
  • Work, Cost, and Product Breakdown Structures (WBS, CBS, PBS)
  • Multiple views: graphical, list, columns
  • Intuitive data entry and manipulation
  • Drag-and-drop functionality
  • Copy and paste support
  • Customizable attribute fields
  • Efficient information sharing
Features
Read full description

Break down and visualize your work, costs and products. CostX helps you efficiently break down work, costs and products in your projects into manageable parts and automatically aggregate them from branch to trunk. CostX can be used to create Work Breakdown Structures (WBS), Cost Breakdown Structures (CBS) and Product Breakdown Structures (PBS) and is suitable for a wide range of applications thanks to its powerful customization capabilities. CostX makes it easy and convenient to break down objects to create tree structures and provides multiple forms of views to visualize your work. Thus, you have the freedom to display your project data in graphical, list and columns views, depending on your needs - CostX makes your work more efficient and intuitive. With carefully designed data entry, CostX gives you intuitive graphical manipulations, professional table manipulations, and familiar column manipulations in data entry to break down and create nodes, change attributes, and summarize costs. costX makes these tasks much easier than you might think, with minimal operating and learning costs. The application takes advantage of the powerful interactive capabilities offered by the system, helping you share information with the system and other applications extremely efficiently. By dragging and dropping, as well as copying and pasting, you can convert multiple lines of text into multiple nodes and build a tree structure in a single step, or create nodes with multiple information fields in bulk. In addition, you can batch copy data from multiple cells in Apple Number and MS Excel to the CostX spreadsheet. CostX’s customization options allow you to better adapt the program to your business needs and get creative. Users can customize the attribute fields they want, the display order, and how nodes are displayed in the various views as needed. More freedom leads to more usage scenarios. ## Ease of use - Multiple views for viewing and editing, you can choose the most suitable one for your needs. - Graphical view, allowing you to view and edit nodes in an intuitive way. - List view, with detailed data display and table editing that supports continuous input and switching and modifying cells. - Columns view, for convenient and familiar operation, similar to the columns view of the file application. - Property editor, maintenance of all properties of the node for changes. - Convenient operation of adding, duplicating, folding and indenting. ## Efficient - Powerful drag-and-drop support for: - Move and copy nodes within a document. - Merge costs within a document. - Drop CostX files into a node to insert its contents. - Drag images from Files app, Photos app, and Web browser. - Powerful copy and paste support. - Copy and paste within a document and between multiple documents. - Nodes - Cells - Copy text from outside: - Single-line text to create a new node. - Multiline text to create multiple nodes in series and get tree structure information. - Modify cell contents. - Copy data from Apple Number and Microsoft Excel: - Change cell contents in batch at once. - Batch add nodes with multiple fields at once. ## Customization - Base currency, cost rate and category settings. - More than fifty fields to choose from, including category, photo, simple and compound cost, text, date, percentage complete, etc. Costs can also be divided into two groups for comparison purposes. - Field settings. - Visibility in each view and in the property editor. - Field display title. - Field display width in the list view. - Field display order. - Display style of nodes in graphical view and columns view. - Use any CostX document as a template. ## Import & Export - Export the selected node as a CostX file. - SwiftApps WBS file into a CostX document. - CSV export. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

c.Notes

A CalDAV client for synchronizing notes across devices using the iCalendar VJournal format. Keep your notes on the same servers as your calendar events and contacts.

Highlights
  • CalDAV synchronization
  • Cross-platform compatibility
  • iCalendar VJournal format
  • Notes, calendar, and contact integration
  • Server-side note storage
Read full description

c.Notes is a CalDAV client that lets you synchronise your notes across all devices, regardless of platform, using the iCalendar VJournal format on CalDAV servers as backend. Keep your notes on the same servers and in the same format as your calendar events, todo items and contacts.

Screenshots

CostX4 screens
c.Notes4 screens

Verdict

The call

The clearest difference is review sentiment: CostX at 100% against c.Notes's 50%. CostX also leads on price (Free vs $4.99) and rating (4.5 vs 4.0). c.Notes's advantage is in-app purchases (none vs 2). On update cadence, 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

CostX is free to download; c.Notes costs $4.99 up front. CostX sells 2 in-app purchases, starting at $1.99 per month. c.Notes asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

CostX holds the better App Store score, 4.5 against 4.0. Both are backed by a comparable volume of ratings — 8 and 2 respectively. Written reviews point the same way: 100% of CostX's written reviews are positive against 50% of c.Notes's.

UpkeepUpdate frequency

CostX ships an update every 4 weeks, c.Notes monthly. The most recent releases landed on September 30, 2026 and October 11, 2026 respectively.

Scorecard7 real differences · 3 level
CostX versus c.Notes: the parameters behind the verdict, then further details
ParameterCostXc.Notes
PriceFree — better$4.99
Rating4.5 (8 ratings) — better4.0 (2 ratings)
Positive reviews100.0% of reviews — better50.0% of reviews
Number of ratings8 — better2
Update frequencyEvery 4 weeks — betterMonthly
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases — betterPaid
DevicesiPhone, iPad, Mac — betteriPhone, iPad
Requires iOS16.0 — better18.0
Further details — not scored
Size14 MB2 MB
Age rating4+4+
Developer皓 李subnetz.computing

Customer experience

CostX

All ratings8 ratings
Positive87.5%
Neutral0.0%
Negative12.5%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

c.Notes

All ratings2 ratings
Positive50.0%
Neutral50.0%
Negative0.0%
Written reviews2 reviews
Positive50.0%
Neutral50.0%
Negative0.0%

In-app purchases

2 purchases

CostX

Subscriptions2
  • Monthly$1.991 Month
  • Yearly$17.991 Year
None

c.Notes

No in-app purchases

Questions

Is CostX free?
CostX is free to download, with in-app purchases available.
Is c.Notes free?
c.Notes costs $4.99, with no in-app purchases.
Which has better reviews, CostX or c.Notes?
CostX is rated higher. CostX averages 4.5 out of 5 from 8 ratings, while c.Notes averages 4.0 from 2 ratings.
Do CostX or c.Notes have ads?
Neither CostX nor c.Notes shows ads.
Which is updated more often, CostX or c.Notes?
CostX ships an update every 4 weeks, and c.Notes monthly. Most recently, CostX was updated on September 30, 2026 and c.Notes on October 11, 2026.

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