Ok so Cleaning is a very broad term. Restoration could technically be defined as cleaning under the strict definition of the word, and vise versa. As far as window cleaning techniques and procedures go there is a distinct difference in my book between cleaning with a soap to that can be handled with your bear hands and using a corrosive acid requiring extra precautions and procedures.
One restore is designed to remove staining from several building surfaces including glass. CC 550 Is specifically designed as a glass clearing agent. It is not designed for other surfaces as far as I know. CC 550 will remove some stains on glass One Restore cannot, because One restore is not designed to be used just on glass. The reason One restore is effective at removing stains on glass is because it contains Hydrochloric acid, as does CC 550. CC 550 Also contains Hydrofluoric Acid. My guess as to why One restore does not contain Hydrofluoric acid is because that type of acid may be harmfull to some of the other surfsces One restore was also designed to be used on (pure speculation). None the less the acid contained in both products is highly toxic and corrosive, which is why the safety label on both products instructs you to wear chemical resistant rubber gloves and a proper breathing mask.
Even though Eaco Chem uses the term "cleaning" on their website as a use for their product they are refering to the restoration value of the product. In other words the terms restoration and cleaning are being used interchangeably. The products is designed to "restore" or "clean" building surfaces other soaps that don't contain acids can't.
One restore and CC 550 Are designed to attack contaminants on the surface in a different or more intense way than soaps. both products can be classified as a cleaner under the strict definition of the word however they are not intended to work the same as regular window cleaning soaps and therefor in my opinion cannot be classified the same as when cleaning when regular soaps.
In my business I use the term cleaning to define using regular window cleaning soaps along with traditional tools and equipment (t-Bar, brush, wool, razor, squeegee) to remove dirt and debris from the glass and restore the glass to its original clarity. I use the term Restoration to refer to glass that cannot be brought to original clarity using these methods, But rather require more aggressive chemicals, Tools, and procedures (Acids, safety goggles, rubber gloves, polishing compounds, mechanical polishing equipment). As there is a a lot more involved with the later I feel it is necessary to draw a clear distinction between the two. Whether the terms I use to describe the two are the correct terms according to their strict definitions or not I can't say for certain but the important point is that there is a distinction.