Comparison

Fender Online Tools vs DDNotes

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

Head to head
About

Fender Online Tools

This app helps users select and specify fender systems for various applications. It offers tools for calculating berthing energy, generating specifications, and selecting appropriate fenders based on project requirements and industry standards.

Highlights
  • Fender selection tool
  • Berthing energy calculation
  • Fender Specification Generator
  • Bollard Specification Generator
  • Ship-to-Ship Fender System Selector
  • PIANC and British Standards compliance
Features
Read full description

Trelleborg’s fender online tools provide users with a number of fender system options, which are suitable for varying applications and project requirements. The user can select the most suitable fender by applying filters to arrive at the most appropriate solution. A subsequent summary document is then produced. Further optimization of the fender system with respect to cost and performance can be done in consultation with Trelleborg’s experienced engineers globally. “The easy-to-use fender specification generator tool helps consultants to create a comprehensive, ready-to-use specification for the selected fender system, including testing and inspection plans for each and every component. Customized specifications for pneumatic and foam fenders can also be produced by adding relevant parameters under the fender specification generator tool.” The tools' capabilities include: -Berthing energy calculation -Fender selection tool -A Fender Specification Generator -A Bollard Specification Generator -A Fender System Selector for Ship-to-Ship Applications Trelleborg’s fender online tools have been developed in accordance with PIANC guidelines and British Standards, as well as American (ASTM) standard, to ensure best-in-class, compliant solutions. For more information about the online tools and to discover the enhanced features visit: https://bit.ly/2KRrndC

About

DDNotes

Features
Read full description

The product is based on the passive electromagnetism and pressure sensitive pen techonolgy,Write on plain paper without changing the traditional way of writing,the original handwriting not onle can be retained on paper but also can be stored on the computer mobilephone ,tablet and other electrionic devices by wireless or wired connection. The handwriting positioning is precise, the data is stored accurately, the original handwriting can be output, and the handwriting track playback is supported. It can also be used as a digital drawing board for artistic creation. It can be easily used in a variety of application scenarios such as double teacher classroom, interactive classroom, micro class recording, e-book bag, painting teaching, online live broadcasting and one-to-one,the A4 format with paper clip limit slot ,in school teaching. More widely, it should be in all kinds of education, office meetings, service business halls, finance and insurance, hotel and tourism, business meeting minutes, medical treatment and other industries and individuals.

Screenshots

Fender Online Tools4 screens
DDNotes3 screens

Verdict

The call

The clearest difference is update cadence: DDNotes at every 3 weeks against Fender Online Tools's every 6 months. DDNotes also leads on iOS requirement (9.0 vs 11.0). 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Fender Online Tools ships an update every 6 months, DDNotes every 3 weeks. Both last shipped on November 3, 2026.

Scorecard2 real differences · 7 level
Fender Online Tools versus DDNotes: the parameters behind the verdict, then further details
ParameterFender Online ToolsDDNotes
PriceFreeFree
Rating5.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyEvery 6 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS11.09.0 — better
Further details — not scored
Size71 MB8 MB
Age rating17+4+
DeveloperTrelleborg ABBeijing SKYG Information Technology Co., Ltd.

In-app purchases

None

Fender Online Tools

No in-app purchases

None

DDNotes

No in-app purchases

Questions

Is Fender Online Tools free?
Fender Online Tools is free to download, with no in-app purchases.
Is DDNotes free?
DDNotes is free to download, with no in-app purchases.
Do Fender Online Tools or DDNotes have ads?
Neither Fender Online Tools nor DDNotes shows ads.
Which is updated more often, Fender Online Tools or DDNotes?
Fender Online Tools ships an update every 6 months, and DDNotes every 3 weeks. Most recently, Fender Online Tools was updated on November 3, 2026 and DDNotes on November 3, 2026.

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